Need to be careful about throwing around extra trade skills, due to what was mentioned above. Stuff like masterplate + trans poisons is already problematic.

I think it was agreed that any demigod or Ascendant with a secondary trade skill won't be able to trans it, i.e. can get 100% Mythical, in the same way novices can get 100% Adept without getting Master (and therefore without getting the Master "skill").

It was, but Estarra overrode that because everyone already can get the trans boosts for most tradeskills now, so no reason to prevent it. Which is at least consistent. I always thought you shouldn't be able to keep them, especially since you can't keep some; but if it's by design that you can, then the demigod multiple tradeskills thing doesn't really change it.