A lot of flight testing & just plain old time in the air trying to chip away at the 40 hours so I can risk other peoples lives other than just mine... Engine runs Awesome - but still have a few burps when going hard to WideOpenThrottle. No 'incidents' though. Landed some 7 knot 90-degree crosswinds - yuk - and it was messy & bouncy but no damage and landed/rolled out great. Did a few AILERON ROLLS (woo hoo - glad that worked...) and A LOOP !!! Didn't expect to try so soon but I could feel the plane climb so agressively on stick-back that it was obvious it would do them well. The loop was fast. The engine burps coming out of the aileron roll - no problem. Did a bunch of smoke lines and fast turn-arounds to fly through the smoke line at 150 mph. Wicked cool. All in all it's going very well. Mixture is better, engine not balking at WOT as bad.