Yeah, I'm not sure if there's anyway to visualize CoM during midflight, it would be really revealing I think. I'd heard similar claims about how the CoL and CoM should be touching, I'm certain I can do a little bit better than that, this is LITERALLY the first plane I've built that flies straight and true, so I'm cerain I'm making all sorts of rookie mistakes. Not sure, on the T/W Rune, should probably hook up Engineer to it. She never really gets above 1000 m/sec anywhere. Maybe she needs less drag but those intakes are the only thing giving her any go at the really thin atmosphere levels, and she's already pretty streamlined for drag besides the suckers. I really have no clue if there's anyway to visualize CoM in flight, or what reduced fuel weight in the tanks looks like. I was able to determine that she still flies really cleanly when she's hideously low on fuel. Like 5% fuel left she's still very stable in flight. I don't know about her speed, I know she's not moving fast enough in the really thin atmosphere to maintain altitude, I have to fly in the skipping method, diving down to 20-25 km to get a big breath of air, and then scream on full throttle back to her AP, ad infinitum. Noted, I'll try that out. Awesome tip on the bigger wheels. Are there videos on how to do the internal struts? I tried to find the sweet spot you mentioned to little avail.