Hi guys I've been trying out my new 5/3/1 routine for about a month and a half now and I have a nice gain in weight and strength of at least 20% in all my lifts it's great. I'm 17 years old 5'11, 167-170 pounds, 9%body fat and been working out for about a year. I just wanted to know what you think is normal for someone of my age and experience to be full squatting, I mean ass to the floor squatting. I can easily do up to 5 reps 300 pounds full squat. The reason I ask is because some guys told me, that it was crazy that I was doing so much and asking me if it hurt my knees. I told them no that I just go up and down slowly and don't slam myself to the floor. Earlier I saw them box squatting about 225 and it seemed hard for them to do. I just thought they were doing a warm up or something, I had always thought my squat range was normal, thoughts?