Update- The OS .65 AX did not disappoint. The 11/8 just wasn't enough load for the engine, so I changed it out for an 11 x 9 APC. 13,800 RPM with 15% Cool Power. This thing is strong. I have thrust to weight better than 1:1. This engine is an excellent bang for the buck.

I had to remove the 1 oz of tail weight and move the battery from under (over?) the servos to over the fuel tank to bring the CG back in line. So that is about a 3 oz weight savings. More power plus less weight. Money well spent.

-Robert