I was out in the field, combining both cheapshot (eyepoke) and subdue reps on a particularly unfortunate yeti. I noticed a wide variation of penalties/bonuses for each maneuver; I was curious if anyone had an explanation for these. My own suspicion is that eyepoke and subdue have a synergistic effect, and that the +35 effect is occurring when they are both having a maximal impact, but can't confirm it for certain. The whole thing is complicated by the fact that the attacks on the legs stunned the creature, which should give a bonus.

The log is a bit long; I have tried to cut out various irrelevancies (like when more yetis or some dwellers wandered in and I had to kill them). Thanks in advance for taking time to look it over.

You leap from hiding to strike!
You make a precise attempt to punch a krag yeti!
Your attack is hindered by holding a glistening sea-blue buckler!
You have good positioning against a krag yeti.
UAF: 434 vs UDF: 343 = 1.265 * MM: 104 + d100: 42 = 173
... and hit for 39 points of damage!
Strong strike leaves a bloody gash on the krag yeti's left calf.
The krag yeti is knocked to the ground!
The krag yeti is stunned!
Strike leaves foe vulnerable to a followup kick attack!
Roundtime: 4 sec.
R>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>stance offen
> cheap eyepoke
You are now in an offensive stance.
H>
You come out of hiding.
[Roll result: 153 (open d100: 77) Penalties: 15]
You jab your finger right at a krag yeti's eye!
The krag yeti shudders in pain, temporarily blinded!

[You have 5 repetition(s) remaining.]
Roundtime: 3 sec.
R>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>get blackj
> stance offen
x> subd yeti
You remove a blackjack from in your deep black silk pack.
H>
You are now in an offensive stance.
H>
[Roll result: 174 (open d100: 90) Bonus: 5]
You spring from hiding and deliver a blow to a krag yeti's head!
The krag yeti is paralyzed!
The scintillating white light surrounding the blackjack fades some.

[You have 5 repetition(s) remaining.]
Roundtime: 5 sec.
R>stow r
You put a blackjack in your deep black silk pack.
>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>stance offen
> cheap eyepoke
You are now in an offensive stance.
H>
You come out of hiding.
[Roll result: 156 (open d100: 37) Bonus: 15]
You jab your finger right at a krag yeti's eye!
The krag yeti shudders in pain, temporarily blinded!

Necrotic energy from your leather handwraps overflows into you!

You feel reinvigorated!

[You have 4 repetition(s) remaining.]
Roundtime: 3 sec.
>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>
You feel fully energetic again.
HR>
A krag yeti clambers back to its feet.
HR>stance offen
> punch left leg
You are now in an offensive stance.
H>
You leap from hiding to strike!
You make a precise attempt to punch a krag yeti!
Your attack is hindered by holding a glistening sea-blue buckler!
You have good positioning against a krag yeti.
UAF: 434 vs UDF: 357 = 1.215 * MM: 94 + d100: 66 = 180
... and hit for 44 points of damage!
Well executed strike to the krag yeti's left leg fractures the fibula.
The krag yeti is knocked to the ground!
The krag yeti is stunned!
Roundtime: 4 sec.
R>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>stance offen
> cheap eyepoke
You are now in an offensive stance.
H>
You come out of hiding.
[Roll result: 89 (open d100: 29) Penalties: 15]
You jab your finger right at a krag yeti's eye!
The krag yeti blinks quickly, dismissing the attack.
Roundtime: 3 sec.
R>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>get blackj
> stance offen
> subdue minot
> subd yeti
You remove a blackjack from in your deep black silk pack.
H>
You are now in an offensive stance.
H>
Subdue what?
H>
[Roll result: 94 (open d100: 14) Bonus: 5]
You spring from hiding and deliver a blow to a krag yeti's head!
The krag yeti is annoyed, but otherwise unaffected.
Roundtime: 5 sec.
R>stow r
You put a blackjack in your deep black silk pack.
>stance defen
R>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>stance offen
> punch left leg
You are now in an offensive stance.
H>
You leap from hiding to strike!
You make a precise attempt to punch a krag yeti!
Your attack is hindered by holding a glistening sea-blue buckler!
You have excellent positioning against a krag yeti.
UAF: 434 vs UDF: 312 = 1.391 * MM: 99 + d100: 65 = 202
... and hit for 64 points of damage!
Awesome crossover punch shatters femur into a hundred pieces, shredding upper left leg!
A krag yeti collapses to the ground and grasps its mangled left leg!

The krag yeti is stunned!
Roundtime: 4 sec.
>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>
You feel fully energetic again.
H>stance offen
> cheap eyepoke
You are now in an offensive stance.
H>
You come out of hiding.
[Roll result: 136 (open d100: 47) Penalties: 15]
You jab your finger right at a krag yeti's eye!
The krag yeti shudders in pain, temporarily blinded!

Necrotic energy from your leather handwraps overflows into you!

You feel reinvigorated!

[You have 3 repetition(s) remaining.]
Roundtime: 3 sec.
R>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>stance defen
> hide
HR>get blackj
> stance offen
> subd yeti
You remove a blackjack from in your deep black silk pack.
H>
You are now in an offensive stance.
H>
[Roll result: 139 (open d100: 55) Bonus: 5]
You spring from hiding and deliver a blow to a krag yeti's head!
The krag yeti is paralyzed!

As you hit, your blackjack sucks away the air!

... 10 points of damage!
Ribs crack as chest swells!
The scintillating white light surrounding the blackjack fades some.

[You have 4 repetition(s) remaining.]
Roundtime: 5 sec.
R>stow r
You put a blackjack in your deep black silk pack.
>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>
A krag yeti blinks rapidly, clearing its eyesight.
HR>stance offen
> cheap eyepoke
You are now in an offensive stance.
H>
You come out of hiding.
[Roll result: 157 (open d100: 38) Bonus: 15]
You jab your finger right at a krag yeti's eye!
The krag yeti shudders in pain, temporarily blinded!

[You have 2 repetition(s) remaining.]
Roundtime: 3 sec.
R>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>stance offen
> cheap eyepoke
You are now in an offensive stance.
H>
You come out of hiding.
A krag yeti just fell for an eyepoke not long ago, best wait a bit before trying it again.
>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>get blackj
> stance offen
> subd yeti
H>
You remove a blackjack from in your deep black silk pack.
H>
You are now in an offensive stance.
H>
[Roll result: 249 (open d100: 175) Penalties: 5]
You spring from hiding and deliver a blow to a krag yeti's head!
The krag yeti is paralyzed!
The scintillating white light surrounding the blackjack fades some.

[You have 3 repetition(s) remaining.]
Roundtime: 5 sec.
R>stow r
You put a blackjack in your deep black silk pack.
>
A krag yeti blinks rapidly, clearing its eyesight.
>stance defen
> hide
>
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>
A krag yeti's body tenses as it attempts to free itself.
HR>stance offen
> cheap eyepoke
You are now in an offensive stance.
H>
You come out of hiding.
[Roll result: 153 (open d100: 34) Bonus: 15]
You jab your finger right at a krag yeti's eye!
The krag yeti shudders in pain, temporarily blinded!

[You have 1 repetition(s) remaining.]
Roundtime: 3 sec.
R>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>get blackj
> stance offen
> subd yeti
You remove a blackjack from in your deep black silk pack.
H>
You are now in an offensive stance
H>
[Roll result: 166 (open d100: 52) Bonus: 35]
You spring from hiding and deliver a blow to a krag yeti's head!
The krag yeti is paralyzed!
The scintillating white light surrounding the blackjack fades some.

[You have 2 repetition(s) remaining.]
Roundtime: 5 sec.
R>stow r
>
You put a blackjack in your deep black silk pack.
>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>
A krag yeti searches around nervously.
HR>stance offen
> cheap eyepoke
You are now in an offensive stance.
H>
You come out of hiding.
[Roll result: 143 (open d100: 82) Penalties: 25]
You jab your finger right at a krag yeti's eye!
The krag yeti shudders in pain, temporarily blinded!

[You have completed your training task.]
Roundtime: 3 sec.
R>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>get blackj
> stance offen
> subd yeti
You remove a blackjack from in your deep black silk pack.
H>
You are now in an offensive stance.
H>
[Roll result: 88 (open d100: 10) Penalties: 5]
You spring from hiding and deliver a blow to a krag yeti's head!
The krag yeti is annoyed, but otherwise unaffected.
Roundtime: 5 sec.
R>
A krag yeti swings a monstrous hairy hand at you!
AS: +297 vs DS: +325 with AvD: +38 + d100 roll: +75 = +85
A clean miss.
R>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>
A krag yeti blinks rapidly, clearing its eyesight.
HR>get blackj
> stance offen
> subd yeti
You already have that.
H>
You are now in an offensive stance
H>
[Roll result: 160 (open d100: 86) Penalties: 5]
You spring from hiding and deliver a blow to a krag yeti's head!
The krag yeti is paralyzed!
The scintillating white light surrounding the blackjack fades some.

[You have 1 repetition(s) remaining.]
Roundtime: 5 sec.
R>stance defen
> hide
You are now in a defensive stance.
>
Roundtime: 3 sec.
You attempt to blend with the surroundings, and feel confident that no one has noticed your doing so.
HR>get blackj
> stance offen
> subd yeti
You already have that.
H>
You are now in an offensive stance.
H>
You are beginning to feel a little fatigued.
[Roll result: 189 (open d100: 75) Bonus: 35]
You spring from hiding and deliver a blow to a krag yeti's head!
The krag yeti is paralyzed!
The scintillating white light surrounding the blackjack fades some.

The last bonus can't be due to the eyepoke, which has worn off. It's probably due to stacking subdues ... does this happen?