Originally Posted by
AtlantaDave
Grip: use chalk.
1) You are dropping your hips when trying to set your back. Keep your hips up, and instead rotate your chest up through your shoulders (show your tits to the wall in front of you). 2) You are jerking the bar off the ground, which is bad. Instead, when you rotate your chest up, also take the slack out of the bar, then squeeze the bar off the floor; do not jerk it off the floor. 3) Between the lowering of the hips, failure to properly set your back, and jerking it, your low back is rounding (which is bad).