I know what you mean....I don't know how in the world you could balance this plane with a glow engine in it. How do you like the CF gear? I heard people saying that they cracked easy. I think you will end up moving your CG back a bit. I balaced mine at 5 3/4 and it was way too conservative for my taste. The extra wanted to come in a bit hot and would not hold a good knife edge either. Other than that.....I love it.