Pitch Tuning the Drums

"Pitch-tuning", tuning the drums in your drum set to a certain pitch, is a technique used by drum tech, Jim Vincent, the drum tech for Matt Cameron (Soundgarden, Pearl Jam). Jim tunes Matt's toms, from floor tom to high tom, C, F and A#. He tunes the snare to F#. My question is, what if F# isn't in the key of the song being played? Every snare hit is going to be a note that's out of key, and there tends to be a lot of snare hits in any given song. I'm going to try to contact Jim and see if I can get an answer... I'll be sure to provide his explanation if/when I get one. If anyone has any suggestions on how I can reach Jim, let me know...