Flaperon?-- You need to be running more than 4 channels if you want to do this. I suppose next you will tell me I need a computer radio with all the mixing and expo and such....
Thanks a lot for the suggestions, tomorrow I´ll try all that, I guess it has something to do with thrust as you mentioned so I´ll see what happens know that it has an ultrathrust muffler (91FX 15x4W APC).
Not sure what ultathrust you have, but mine was the little bigger one and pulled a 15x6 apc into the 11's pulling a 10 pound Spacewalker with authority. If you have the same ulta thrust as I did you might want to try a good 15x6SK wood prop. Spool will be a bit better.