Jon, if I had a beater Pro Sonic, perhaps I would not mind drilling holes in the chassis. My Pro Sonic is pristine. If I did such a thing, I would want a separate switch for each cap. As for volume issues, that is where those three modes of operation available with that switch on the back could come in handy. Depending on whatone wanted the amp to do, one would select from those three modes. For 8nstance, unless I were looking for pure clean at volume, I might never get into that 60 watt mode. The distortion comes on so much earlier in that 30 watt mode that for lower volume situations, that is probably where I would run the amp. Ommv.