Last night V1 in my Silverface Super Reverb began making noise during practice. I had to replace it with a pulled EH 12ax7 that I had as a spare. I CANNOT BELIEVE how good this tube sounds in the amp? I guess my NOS snobbery kept me from using it, but now I'm thinking about picking up a bunch of these. Anyone else have the same experience or suggestions for new production 12ax7 tubes?