Gone!
I have a ton of references here or on the Facebook group if you need. There is a pic on the MTS facebook page, or PM me and I'll get some to you.
I absolutely agree with this, KT88s to start...cheap enough to give it a shot.
I've never seen a MODULE with higher headroom than the JF Super Clean, if you end up deciding that the module is the problem.
Reverb.com
eBay
MTS Facebook Group
This forum
Some of the "clean" modules have limitations as far as modding goes, Rob used to have a list of what could be what on his site. Salvation mods tells you which donor is required on their website.