I looked at the video of the lift, and here's what I would say...
I know some guys are telling you to drop your ass more, but I think this is more preference. You're lanky, so use your height to your advantage.
I think your biggest problem by far is the 20 sec you were down on the bar just adjusting yourself to lift it.
Get down there and pick the damn thing up. Get yourself tight too before you bend over, try to keep that arch as you pull it off the floor (even if you lose it) cause it will keep you tighter.
Then just explode that shit up.
AnimalMass