I'm not sure if this is a secret which cannot be discussed on the boards, so if so, my apologies. I don't really think it is, since it's all base mechanics, not anything actually secret like a poison recipe.
Can someone give me a frank and detailed explanation of museum stealing? A walkthrough would be handy, as would answering some of the specific questions below.
The page on the wiki is hilariously out of date, and I'm not sure if the numbers are even correct. If I can get some information here, I'll edit the wiki page.
Note: I've tried looking for thieves in-game to ask these questions and...no dice.
What I'm looking for
1) General skill range to start, without being insta-caught
2) General skill range where it becomes basically a middling activity; the equivalent of a 70% chance at victory every time.
3) General skill range where it becomes an 'I could do this in my sleep and in fact did'
4) Do I need a LAD? Can they even be made after 3.0?
5) Does invisibility (thief khri version and/or other-guild cast version) impact success?
6) Specifically, getting Gweth stones; are these the most difficult/easiest items?
7) Can any items be stolen during the day, or must everything be done at night?
