Maidened my new version F16 today. CG at 7.25" seemed a tad noseheavy, plane has tendency to dive coming out of the bank at 1/2 throttle. Will try again this weekend with adding 1 oz lead in the tail, guessing will bring it closer to 7 3/8" CG. But it's not anywhere near the 8.5" per instructions. I like to fly my propjets fast and low, so don't like idea of bird dropping the nose coming out of the bank. It will help get the high alpha attitude on landing too. Bird did land a little hot with OS 91, apc 11x9 prop idle set at 2700rpm. Will try again with rigging for some flapperons. I'd rather not drop the prop pitch and sacrifice top speed. My OS 91 with jettstream muffler peaked at 14Krpm on the ground, giving static thrust of 10.6 lbs. That's 112% Thrust to Weight Ratio.
Only scary thing was the plane had high speed stall and nearly lost it after take off. Roll out was smooth, no excessive pulling, just some rudder adjustment for usual engine torque and 5mph cross wind. When I brought it around, I banked probably too steep with high rates on the elevators (more than recommended) and the bird had a high speed stall, rolled hard to the right and flipped upside down. Lucky to straighten it out, reduce elevators to low rates and no more problems. By the way, I put in 1/8" up trim from neutral on the elevators per instructions and did not have to make any inflight adjustments. Take home message: don't put in excessive elevators travel and make sharp turn after take off. That's my 2 cents. Will give more feedback after making above adjustments.