Buying Tubes Again; Maddening

I've recently begun using some of the Psvane 12AX7s, which are about the same price as the Genalex 12ax7, despite the fact that their EL84 is twice the price of a Genalex EL84. Anyway, my initial impressions are quite positive indeed, although I'm still in the first 100 hours of burn-in. About to drop in a pair of Psvane 12AU7s...

Sounds like an excellent plan - will be very curious to see how the Psvanes stack up again's Jim's recommendations.