Running either my Strat or LP into my 18w Ampeg Jet reissue I love the natural crunch I get from the amp, but find I have 2 problems. Not enough separation between clean and O/D when using an O/D pedal at decent clean volume, and feedback from the LP at fairly low volumes despite using the lo input. I'm thinking of swapping a 12ay7 for the 12ax7 in V1 to reduce the gain in the amp to basically get a cleaner amp, and get my crunch from the pedals. Anyone else try this? Any suggestions? Anyone else running a 12ay7 in V1 on a twin EL84 amp? Thanks in advance!