lol ! ive tried these on the hack squat before, i saw justin harris and steve kuclo do it that way on an in the trenches training series.
it is definitely a bitch !
luckily my legs respond to just about anything so i can just stick to regular hacks leg press and leg extensions.. i would fuckin hate if i had legs as a genetic weak point and i was one of those guys who has to go balls out on bitch ass movements like squats and sissy squats ! fuck that shit !