jeremys said:back to the original topic..i think i may not be stable in the upper body when i hold/unrack the weight.
You mentioned quite some time ago that you had a hard time doing reverse-hypers. B-Fold suggested that your abs may not be strong enough yet to do that exercise without passing out from lack of air. (Rememeber that thread and question?)
If you are having trouble staying stable in the squat, weak abs coiuld still be the problem. That thread was not that long ago, and even if you have started working abs religiously, they still might not be strong enough by now to keep your core stable for squats.
.02,
Joker