I kinda picked up multiple armors late in my career, but I just wear leathers with a chain helm, and cloth gloves, or I switch up the helm and gloves. I could probably mix in some other peices to maximize learning, but the cloth and leather move along a decent amount. I know there are other rangers out there with like 4-5 armors around the same as each other close to 500s, so I bet I could mix it up more. There may have been some recent changes, or changes on the horizon that will give big penalties to mixing up armors too much. I think the really good people just swap full sets of armor or train 2 types of armor and a time, by locking then swapping. Its just alot of work, and I'm really weak and cant carry all that stuff.

Leather Armor: 500 70% mind lock (34/34)
Light Chain: 279 73% nearly locked (33/34)
Cloth Armor: 196 55% concentrating (9/34)


If you were only wearing some perfect storm-bull leathers your maneuvering would be minimally hindered and your stealth would be minimally hindered.
But considering all the armor and shields you are wearing or carrying, you are currently insignificantly hindered and your stealth is insignificantly hindered.