Agreed, I would leave it like it is, with a recap and fresh tubes. After that, maybe try some different speakers. I have never cared for master volume silverface's that were attempted to be blackfaced. Someone told me the problem is in the feedback circuit. The silverface don't sound bad, just a different sound from a blackface.Every single time I've blackfaced a silverface, I liked it LESS, and I've had both types of amps. It doesn't get there for many reasons. The bias adjust conversion is the main thing I like. Get it healthy, good speakers and good sounding tubes and play it. I'm a fan of RCA 7025's and 12AX7's in Fenders. GE's sound good to me, also. I'm with 335guy on power tubes.