Aparently there is a bug to the dmg reduction when using nimble perk… If the character is naked he only gets 40%, and then if I put 17 fatigue armor combo he gets 42%.
Working as intended.
You get only 40% dmg when your total armor -Fatugue is 15 or less. Anything beyond that reduce damage reduction.
Also you get 40% dmg which mean your damage reduction is 60%.
With armor that you get 42% dmg your damage reduction is 58% so its lesser.