i was told by a friend that i really sohuldn't be trying to max out on the squats because i just turned 15, am not fully grown yet, and could screw up my growth plates in my legs? anyone got any advice on this? note that these are machine squats and so i can put more weight on it than a regular, thus more stress on the growth plate. did anyone else that started young do max squats a lot at a young age.