Was he playing one of his custom Dean's in the video? Maybe he has them clear extra room for that bridge to swing. Those Dean Dual-Vs or whatever, can't think of the name, are all I ever recall him playing.
Thats awsome though, hit a harmonic then let er rip "SQUEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEL".
I sometimes wish my guitar wasn't blocked. I can only drop, I can't raise the pitch. Oh well, she was a bitch to tune without the block.