Built one several years ago with 2 Magnum 40XL's. Weighed about 11lbs, finished with coverite film, then weathered, and clear coated with Black Barons. Flew perfect with the balance and throws shown on the plans. Definatley needs seperate servos for each rudder and one for the nose wheel. Also one on each engine, & each aileron. The flex cables will drive you crazy trying to get all the slop out. I did not have flaps, but seemed to be OK without them. I used Rhom-air retracts that were junk. Really wish I had used Spring-airs.
Low fast passes with a victory roll at the end of the runway will give you chills.
I lost an engine at lift-off, (I think) & it snapped into the dirt. Maybe I will rebuild it someday, since all the palstic and glass cowls survived. I have the plans and all I need is a set of wing cores.