Strike the 2nd fret harmonic on the B string and the 5th fret harmonic on your high E string at the same time as a chord then do a bar dive and a wild vibrato (with the bar) as you dive bomb. It will scream! :-)
Before attempting this you have to practice the 2nd fret harmonic first on your B string wich is very hard if your not used to it and requires an even lighter touch then say the 5th,7th, and 12th fret ones.
I started learning guitar because of Randy Rhoads..but Yngwie J. Malmsteen is my biggest influence.