Video of Taysom Hill with a 625lb. squat !

What’s impressive to me is that he didn’t use knee sleeves or wraps and he did this as a high bar squat. Low bar allows you to use the hips/glutes/hams more to squat the weight up, high bar is mostly quads. Low bar is typically favored for moving heavy weight as you’re using more major muscle groups: I powerlift and this would be a difficult lift for a lot of experienced lifters.