I agree with Big Josh. No need to let the weights down so hard.
I also agree with BruteForce, and that lowering heavy weight slowly isn't easy or reccomended. Albeit, not heavy to most of us, maybe that was 90% of his max.
I also recco to the kid, use a pad under the bar. I put a couple of stretch mats in each side so the weights have a slight cushion. Then again, I'm a pussy who can't lift with a bad shoulder, yet..
Mt Snow, VT - May 5, 2012 - Completed!
Gunstock, NH - June 1, 2013 - Completed!
...i remain, he who remains to be...