Thought i would throw my ten cents in here as i lift equipped:
Bench
Raw = 190kg, Equipped (2 ply Metal open back) = 234.5kg, the shirt was 2nd hand and is big for me, i need about 5more kgs of upper body mass to fit properly.
Squat
Raw = 220kg, Equipped (Single ply suit and knee wraps) = 300kg,
Deadlift
Not much of a factor.
With the Metal shirt, it has been the best by far the best shirt i have had, previously i blew out sinlge ply Inzers and Titans, just my technique with those doesn't work. I find if my raw lifting is strong, my equipped is also. the 2 are trained diffrent but the lifts are still the same for me technique wise.