Well, if you are going to get your depth by sticking your arse out. Then there is a bunch of work to extent your hips and work to extend your knee.
If you are getting your depth by dropping between your knees, your body staying relatively upright, then you have a bunch of work extending your knee and work extending your hips.
Your glutes and hams (amongst others) extend your hips, your quads your knee. That should make sense why you are feeling different muscles in different actions.[/quote]
I don’t really shoot my ass back, I have quite alot of forward knee travel and slight backwards hip movement on the way down.
On the way up I drive my ass up making sure my upper body moves in unison.
I don’t feel it in my hamstrings on the way down, only on the way up, it seems like my legs and core and back are responsible for the lowering and the hamstrings and glutes are responsible for driving up.
Its like on the way up my hamstrings stretch and feel like a band being stretched out.
It isn’t really a powerlifting squat, more a basic strength squat as outlined in Mark Rippetoes novice program.
Its great because I no longer have horrible pain in my IT band/patella like i got from high bar.