I am getting pretty good at tuning 3D planes, but this one has me a little stumped. I like to get a neutral inverted flight. I keep moving the battery back and have even added 1/2 oz lead to the tail. The CG is now 1/2" back from the Carbon Fiber spar (further back than they recommend). Still need to give down when inverted.

I am thinking perhaps I should play with the thrust line a little. It looks like it has up thrust. Has anyone had this same problem with the Mini Inspire, what CG did you try and did you mess with the thrust?

(I have had two Fliton Prodigies (its little brother) They trim perfectly to neutral inverted flight, so I don't get the problem with the Mini Inspire)

Thanks in advance,

Larry