whaat? H string?? ??? QUOTE]
The H -string= B -string.

In Europe we use the letter h for the note 'b' although many people use the both letters because the internet has mixed up these terms quite a much.
And what comes for the original question: BodomiC got it quite a right. Just remember to use your left hand for the bar and right hand for muting the extra strings+picking the pinch harmonic. Try searching and downloading some Satch live vid's to see for better(Surfing With The Alien, Satch Boogie etc..). He talked about the whammy screams in some guitar magazine a while ago. Can't remember what magazine that was(sorry

). I hope you got the idea even for a bit.