I never got shit in squats from wraps except some security and confidence. I did notice a difference with a belt though. Never tried any suits. Buddy I used to lift with could do 405 raw, throw on a shirt and suddenly 545 was going up. 
Excellent!
That's odd, lifters get a few pounds out of just sleeves, now the rule is you have to be able to get them on by yourself

Wraps give me at least 40-50lbs but I guess it depends on a lot of factors like squat style and leverages, but usually everyone gets at least 10kg or 22lbs I would say, and 90lbs is the the top end for powerlifters.
I have never, ever seen anyone else get 115lbs out of a deadlift suit when lifting conventional, usually it's about 20-30lbs. Sumo many got 90lbs though.
I posted this a while back. This was when my max off the floor raw was exactly just 660lbs! 815lbs here, did 837lbs the week after, just bouncing off the suit, 16 years ago LOL
