Have a VVT X40 on the way. Comes with JJ ECC83's. I'm not a fan of JJ's. What's your favorite AX7 for V1 and V2 of a "D" style. I had a Zingaro before and I tried GE 12AX7WA's but they were microphonic in that circuit (tried 3 different ones). Settled on TAD 7025Ms. I have TungSols in other amps and like them a lot. Any suggestions?