That cylinder was lined with MicroBlue, right? And you managed to scuff that?!! Jesus, that bike must have been ripping holes through space-time in order to accomplish something so incredible. My knowledge is limited, but I hear that the incoming gasoline and oil itself does a lot of heat absorption, and I'm thinking that maybe jetting the bike into unexplored territory might have been the downfall, particularly considering the leaf-blower test that tells us the mix ratio is okay. But of course, Project Two-50 has people much more knowledgeable than I working on these things, so I guess there's not much input I can provide that hasn't been thought of before.