Slats, I say 'if it ain't broke, don't fix it'.

If it's the solution you need a handful of times per round, then have at 'er.

FWIW, Ricky, I think I remember reading somewhere (possibly Pelz?) that advocated a grip change for a fairway woods swing, due to it's shallower path. Guys change their grip for half-swings as well - pro guys - guys on Tour - to avoid certain tendencies that different shots bring out.

Slats - you're probably A-O-K.

Now take your new driver swing, and go get fitted for it.