Al and Sewerdude,

I honestly was not trying to start an argument. I was just stating that while I tend to agree with sewerdude, this time I disagree on some points. Oh yea, 3D is more than hovering and this thing does some of the best rollers I've ever seen and upright flat spins are a blast once yo get the ailerons and power setting to where the plane likes it. The best thing is you can throw loads of very high "G" maneuvers at it and the worst it will do is crack the canopy floor, I speak from experience on this one. I've glued mine at least 3 times and finally gave up because a new crack would appear right next to the glue and one other spot was the bottom of the fuselage between the wing and engine box. Dang tumbles really twist this frame [X(]

I suspect the 40 does just fine and the Xoar may be a bit too much load as it's a slightly wider blade. I tested one on my Da50 and I lost a couple of hundred rpm over the PT models 22x8. I forget what 40 you are using.

I know you are using the 20x8 but I'm just thinking out loud. As far as a long breakin time, 3 gallons is not bad considering a DA needs five on ashless then another 5 on synthetic until it's finished. The 40 is probably not done until at least 10 gallons but the original three is to get the ring and everything else seated.