Okay, I got out to fly today and here is how it went. I have added some down thrust to the engine and now the plane requires much less down trim for level flight. I will be adding a little nose weight and see how that affects flight performance. Overall I was pleased with the performance of this plane today, however this is my first plane larger than a 40 size and I am finding it requires much more finesse than the smaller aircraft. It has to be flown like a full size airplane and not like a toy, if you know what I mean. I am also having a hard time slowing this thing down for landing. I use full flaps and I still find it floats like a glider in ground affect. I have an O.S. 91 fs on it with a 16' 8 prop on it. I was thinking of adding a on-board plug ignitor that is automatically turned on at less than 1/4 throttle to help lower the idle speed and ensure that it keeps running. The engine is mounted inverted and I was told that can sometimes create an unreliable idle therefore you have to increase you idle speed to keep it from stalling. My idle is pretty low now but it will sometimes stall on me. I have also found that there is a heck of allot of torc from this engine prop combo. I have to gently ease the throttle forward on take off or the plane does violent turns and I can barely keep it straight. I find this plane gets my heart going much more than my Cap does. My Cap goes where you point it and doesn't change until you tell it to, not this thing it requires your full attention, especially in a little breeze.