I found that without shoes with heel, you can't expect to go ATG in any olympic lift or squat without your toes pointing out (at least i can't).
And since i started doing olympic lifts with Chuck Taylors, my hip hurts because it isn't such a natural movement. I tend to snatch the bar a little bit too much in front of me too because i'm not wearing heeled shoes.
It seems that Chuck Taylors are the best for P-lifting stance (large) and Heeled shoes are the best for an olympic stance (narrow).
The heeled shoes also gives you the opportunity to keep a neutral position with your spine when you go very low.