I have a Genz Benz 6.0 that is starting to get scratchy pots. The worst one is the Master Volume. At first it wasn't too bad but now its getting pretty annoying and I want to fix this. I had the same issue with an old Yorkville combo I had and opened it up and spray some air in the pots and that fixed it. But I'm not sure I want to open up my Genz Benz... Its a pretty small amp so I assume things are pretty cramped in there. As anybody ever cleaned their pots on a Shuttle? Should I attempt to do it myself assuming its as straight forward as cleaning any other pots (like in a bass) ?