Howdy!! Well I had a wonderful experience this weekend!! I play out regularly and just started gigging with the Custom 50, leaving my mesa road king at home. Half way through set one I went into a solo.... the quietest solo ever! packed house of dancers and boom.... blank stares, pissed of stares from the band mates. Luckily I run a Helix into a gizmo for channel switching and used to run only the Helix direct and still had that preset list handy. Had to stumble through the rest of the night which SERIOUSLY ticked off the drummer. I believe the exact words were, "Why doesn't he just get an amp that works." (not quite exact.... add some vulgarity to that) I understand, I should stop goofing around with these cheapo mesa's and prs amps... maybe I should get a peavey. Anyways!! I went to the box of tubes i keep handy in the car, but couldn't get to it in enough time between sets. Thing is.... if I tapped, or smacked, the top of the amp the Lead channel would cut in and out. At one point it seemed to be fine.... but come next song it was out again. This was all still during the first set before running an xlr to the helix. I figured loose preamp tube. But those seemed to be pretty tight. I've got it on my bench right now and all solder joints look solid. I'd consider it being a bad preamp tube, but that wouldn't cut in and out, it would just be dead. Trying to replicate the issue right now. Its pretty new, but out of warranty as I bought it as a returned open box item and PRS doesn't have a transferable warranty. She's new enough that I had to break in the speaker before the frequencies weren't ripping my head off. Being I play out regularly as a pretty good portion of the income I use to support my family... What I need is reliability, and right now the PRS just turned into the dog I don't trust because it bit me.