Dr. Squat - Dr. Fred Hatfield

I havent DL in 18 mo. been busy with the training academy and squatting etc. so how's my form look to you guys? it seems like my hips come up too soon and i felt like my back stayed arched and tight but it's hard to tell in the videos.

PS-sorry I didn't have time to cut down the videos just skip to the lifts.

http://www.youtube.com/watch?v=fXGb6kSnQbE

http://www.youtube.com/watch?v=uUoDuHVnX0Q

http://www.youtube.com/watch?v=eGKkn7JpCs0

http://www.youtube.com/watch?v=Fmh-ZJV0vKU