A lot of things to consider......re: fuel tank full or empty for CG. I 'm almost tempted to move the tank forward closer to the balance point, there is enough room. I have another pusher and the tank is quite a bit further away from engine than in the Eze. I don't experience any fuel flow problems as long as engine has some draw and the press is up. Will try running on ground with it in fwd position and see what happens. If it works, there whould be little change in CG as fuel is used.... comments?