I noticed something yesterday about my Xotic BB Preamp, when I stomp the switch, my foot keeps turning the volume knob nearly all the way up. It's a great sound, but it's not exactly what I dialed in. It's also one more point in favor of the Boss SD-1 that's continually in contention for my "favorite OD", but the SD-1's front-mounted power jack disqualifies it from the position on my pedalboard presently occupied by the BB. So, I'm thinking of ways to make the BB's controls less sensitive to the occasional inadvertent nudge. Duct tape over the knobs is out... I want to be able to adjust them by hand "on purpose", and it looks like hell. Has anybody tried putting rubber "O" rings or short bits of surgical tubing around the pot shafts, under the knobs, to increase friction? What about clamping a short piece of aluminum angle under two of the pot shafts, to make a small "wall" between the footswitch and knobs? This would sort of mimic the step in Boss' design between the treadle and the knobs. The more I think about it, the more I realize Boss has the best stompbox design in the universe. Suggestions?