Go with a GT "4" rating, run the amp on S.S. rec. and in the spongy mode for EL34's, with 6L6's run a "4" rating with the amp on Tube rec. and spongy mode. :wink:
Oh yeah, I run an overdrive pedal in front for a slight clean boost and it tightens up things quite a bit. If you don't use an od...