Moki Update, I have three flights on the Moki 2.10. I used the same testing methods as listed above and yes the plane stayed together. The plane lost about 1 pound so now I am down to about 12.75 pounds. Stock Fuel tank (22 oz I think) mounted forward. Wildcat 10% fuel. I was concerned about fuel draw. Rx battery was moved to get CG at about 3" which leaves it still behind the wing. Bission Muffler for the Moki 2.10.
I only have made one flight that I consider valid data from. The engine swings the APC 16x12 about 600 RPM faster than the Evo 35 and the speed is up
by 14 MPH. I need one more flight with this configuration and then I will try the 16x14 if the plane survives that my testcard calls for a 16x16 then 17x12 (the Dominator prop) Then I want to check a Saito 1.80 a Moki 1.80 and the OS 1.6 when I get done my cowl and firewall will look like swiss cheese.
Sparky