Permabanned
Well I've seen a lot of people on OCN using Kryonaut and I would assume if I had pasted mine correctly it would have been pretty good. Conductonaut is a bit of a PITA as you need to seal the resistors with clear nail polish or something like that to stop any excess Liquid Metal shorting things out. I haven't personally tested many different pastes on GPU's though.
Cheers. Kryonaut it is then.