Just soak the clubhead in the soda (overnight works best), and the finish is gone. Doing this might void the warranty on the club, and it will probably rust more quickly. Plus, it's certain to be a little sticky from all the sugar, but the bath might clean out the grooves a little, too. At least that's what we found. Reduce glare, get cleaner grooves and avoid cavities. How good is that?
-- Mike Stachura