I did some research today.
My Evolution engine weighs in at 18.8 ounces where the O.S. Max FP I have weighs in at 11 ounces.
That's a lot of wieght for an extra 1/3 to 1/2 hp.
As I stated before my plane weighs in at 5.5 pounds dry.
What servos did you use for the flapperons and what channels on the recieved are you using?
I can have the stuff here on Monday from Tower Hobbies if I order tonight.
Thanks
Ralph