I have a friend at church who bought a used Epiphone type ES 335. He got it for a decent price I guess he paid $225 for it. Its loaded with Epiphone Alnico classic 57s. He wants to get a better sound his words. He is an awesome guitarist , at church he uses a Fender Deluxe amp. I have tried to pound it in his head, that here is companies out there like GM, GFS, Fleor , that makes pretty decent pickups. For some reason he does not want to go that route. He said that he can make those pickups sound good. He said he would rather buy pots, caps are what ever. And I told him for the price of the pickups I have mention it might be just as cheap to change. I don't understand his reason but its his guitar. So can you suggest pots and caps to use and maybe take the chrome cover off and get some of the wax off, I heard they really went crazy on wax for some reason, but please can you help. Here is a picture just like the guitar he bought. He looked it up and it does have the classic alnico 57s in it.