I got the idea by watching videos of Ilya Ilin front squatting, in which he cut his front squats above parallel, which is almost unheard of for a weightlifter, since weightlifters require so must strength in the hole to stand up from a heavy clean. I did some searching, and found an article talking about how he started cutting his squats high because he used to have a problem standing up under heavy cleans, stalling and failing just above parallel. In effect, he was actively reversing the lift at the sticking point, making the hardest part of the lift even harder on himself. This was confirmed by Donny Shankle when I met him this summer.