I've played around with 6L6 / 5881 types a bit over the past months, I am normally an EL34 guy. The conclusion for me is, while JJs offer good value for money, the SED=C=s do sound better. That is both, for the EL34s and the 6L6es. So if you'd get a pair of =C= EL34s and a pair of =C= 6L6, that would surely give you tonal nirvana in the Renegade. It would cost a fair bit, as they went up in price a lot, which is why I'd recommend to compare prices well.