My weakest link is my lower back. I'm lifting at a powerlifting gym in Peoria, AZ called Mass Power Barbell Club, and they allow the use of bands, chains, chalk, etc. When doing squats with bands attached to the bottom of the rack, the lift should be getter harder as I rise to the top. Instead, the squat is hardest right after I start pressing up. After about 6-9 inches, it gets much easier. That's telling me that my legs are much stronger in proportion to my lower back.
Some background - I only started doing squats fairly recently, always did leg presses before that because of an old back injury. My back injury has gotten better, and I've been studying powerlifting form as I move from bodybuilding to powerlifting style training. I'm told that my form is pretty good - I sit back first, keep my back locked tight, etc., but my strain is still primarily in the lower back.
I need to do some training to even out the power. The gym has glute/hams, reverse hypers and lots of other things. Any suggestions?