I always hesitate to give form advise, but I will give you a tip that helped me a lot. Drop the pins down a notch. I don't know about anybody else, but I tend to watch where the bar is in relation to the pins as I squat. This usually forces me to bend forward in an attemt to get the bar closer to the pins (imaginary depth). Notice how your hips freeze but you keep reaching for the pins with the bar. By taking the pins out of the equation I was able to stay more upright and focus the depth of my hips rather than the depth of the bar.
Last edited by Off Road; 05-31-2012 at 08:19 AM.