You likka the weights under the heels on a the squats??
I've got long leg bones and it's hard to get past parallel without squat shoes. I'm broke, so I use the 10lb plates to help me rock that past parallel life.
Maybe this is one area that my 27" inseam helps? For a while my friend was putting a mat under our heels. I couldn't stand it. Then my squishy tennis shoes seemed to bother me. Finally I took my shoes off and that was my favorite. Otherwise, I can't push with my heel, its all ball. Is that weird? Am I broken!?! LOL
If a person can squat below parelell without squat shoes or having to use plates like Ol' Yeargain, they are well equipped with both the ankle flexibility and proportions naturally necessary for this to happen. They are geneticallly blessed in this realm, and thus have a higher chance of squatting some serious weight. Smaller range of motion is king in weight lifting.