I never touch the tone dial, and tend to rip the pots off from my guitars. My band plays pretty straight out metal, but I do fiddle with volume in almost every song. Neck pup for some soloing and cleans.
I also have two guitars with piezos, both have two vol pots (piezo+magnetic) and no tone pots. Neither have switches for going between magnetic and piezo pups, so if I want to switch between the two, I have to turn the mag volume down, piezo up and vice versa. Quite a hassle tbh :P