Hey, I just saw Alien Ant Farm live at Central Michigan, and was confronted with a technique I've seen Wooten and others use, but have never figured out how to do. Bassist Tye Zamora slides a harmonic from low to very high at the beginning of the song "Glow." I know it's not just on fretless, cause Vic does it all the time. How the heck do you do it?!?!