I found some older armor accessories collecting dust in my locker that have the following permanent resistances on them.

Arm - It is very resistant (25%) to slashing attacks.
Leg - It is very resistant (25%) to puncturing attacks.
Head - It is very resistant (25%) to crushing attacks.

I wear full plate with critical padding. If I add these accessories, does it change the critical padding in any way to make it weaker? I thought I read something awhile back where doubling up on say critical and damage padding changed some behavior.

Also, any idea how this compares with armor specializations of the same type? Can you have both and stack?

Thanks!