I wondered if he's dropping little hints like this with a Dragstrip story he posted a short while ago
I can't work out how to post it, but if you go to this link: markclonus dragstrip - Google Search - you'll find a photo of United Frenzy riding Dragstrip, but in a different colour scheme. However, it could also be his painted test shot of what was supposed to be RtS Demolition Rumble back in 2011, which is when I believe he started out doing colour layouts for TFs.