What I want to know is which 6l6's. Probably a rabbit hole to get lost in, but there's so many. I'm using JJ 6l6GC's. But I have no idea how they compare to sovtek, tung-sol etc., not to mention TAD, vs GC, vs WGC.. etc. When I switched from JJ 6l6's to Tung-Sol 6l6's in my PRS Archon 100, it...