Yah - that manual actually SHOWS an OS 1.20 being installed. I'd probably pay good money to get a first hand report of how THAT worked. I'm thinking "slug".... but maybe I'm biased against puny OS 1.20's....

Bill - you're right on the money - weighing the parts, then deciding. I was also thinking about the single aileron servo....but.... those are honkin' BIG ailerons if the pic in the manual has good perspective. Then again, a 5945 is a hoss of a servo on 6 volts...

Saving 6 oz plus (two 2 oz servos and the links/clevises/hdwe) in the wings by going single aileron would probably be worthwhile.