btw... I talked my brother into getting the 10cc for his eagle 580.... after I had one in my rv-4 and corsair and was so happy with it.
the plane is incredible.... lightening fast rolls... blinding snap rolls and lomcevaks...
https://www.youtube.com/watch?v=ihLSBClAPfU
at 1:03 where he flips the plane over.. is flying backwards, then stops and starts flying forward again.... you can do that with this plane...
it just needs more power than the 10cc can provide.... if I was to do it again, at a minimum the 15cc gasser.. but more likely nitro in an o.s. 75 size.