During squats I feel more stress on my knees if I don't go all the way down. On the other hand if I go deep, ass to the floor, I feel great! Strange uh?
Oh yeah!! Mostly the left knee which had 2 surgerys, one time for torn cartilage, once for a torn ACL (thanks to years of motox). In fact, the other day it was making "squishing" noises..strangest thing I ever heard. Never hurts though