Questions about squats etc

[MindOverMatter]

The thing is that parrallel for most people is 4 inches above it. Parrallel is much lower than people think, and moving more weight with partial reps is the WORST thing you can do for your knees.

I agree, I see a lot of people doing this. I started training a buddy about 4 months ago, and for the first few few 8 weeks, I just had him do box squats. After that, he had perfect form.