I watch Dave Tate's "So you think you can bench, squat, and deadlift" video compilations at least once a week. I always have a hard time keeping my upper back tight when performing the bench. I have a pretty good arch, but I tend to lose the tightness once the weight gets heavier. My footing is getting better, as is my core tightness and my lockout. I really find the way Dave breaks things down in these videos is amazing; he's so detailed and helps get your programming right. You guys should go over to elitefts.com or youtube to find these great vids.