Thunderclash uses G1 UltraMagnus as the base. I didn't want to alter it though, so I swapped some spare Optimus legs and repainted those. But I'm not happy with it so far, it doesn't have that Thunderclash personality.

Then I thought, what about the TFPrime UltraMagnus? I've already repainted that one as Octane/Tankor.

Should I just keep going with G1, or start over with a TFPrime?