I'm 44 and have been squatting for about 2-3 years (I've been lifting for many more than that but regrettably never took advantage in high school of the huge testosterone advatage teenagers have). I've enjoyed some good growth but would really like to have the option of getting as big as possible (whatever that means for me and without steroids). My question: at 44 is growth going to happen with lower weights and higher reps or higher weights and lower reps? Similarly, is squat to parallel better or deep squatting? I keep reading opposing voices on both issues .... I also want to be sure my knees stay intact for many years ....