So now that I've decided on the engine, it's time to revisit the flight reports:

http://www.rcuniverse.com/forum/rc-s...-build-74.html

So does this sound familiar?

"Almost immediately it banked to the left and it became clear that massive and continuous right aileron was needed. While holding in considerable right stick I took it up high (out of camera range) to work on the trims: EMERGENCY trims! After applying all the right trim available, I still needed to hold in right aileron on the stick but it was manageable, particularly since I was making counter-clockwise circuits of the field."

http://www.rcuniverse.com/forum/rc-s...-build-78.html

Looks like some right thrust is called for on this model also. It's not going to be easy.