(...) I theoretically, and normally in practice, prefer SET over any kind of push/pull. The main non-DHT SET is either a triode wired pentode (like EL34, KT88 or KT150) or something like a 6C33C. The 6C33C, as you know, is capable of making simply world class sound and it is a very good output tube. I am not as familar with the triode wired pentodes that are IDHT. Aries Cerat uses DHT pentodes wired as triodes and that is amazingly good.
(...)
Have you experience with the GM70, other than the famous ML3?