Incidentally had a few flights now with my Fun master, and it is lots of fun. Have moved the CoG back a bit, and it now prop hangs quite easily. May move it back a tiny bit more.
Using it to learn torque rolling now. Have not got round more than twice, but getting there

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I will also put in some right thrust as I think it needs it [&:]
With low rates it is a surprising smooth flyer for its size. Certainly no pattern flyer but pretty good.
For most things the mid rates are fine, even hovering and torque rolling. I use the 3D rates only for elevators really. Elevators and Harriers do benefit from spoilerons (I think my mix in 20% at the moment) but they are not completely necessary.
KE is very easy but does have some pitch coupling. Will dial in a mix when I get round to it. Up and down are very vertical, no need for a mix there.
10 foot diameter rolling circles are fun with this plane too
Only thing I would change would be to increase the landing gear height, as it needs a fair bit of speed and strip to get off the ground. Of course you could hand launch under arm quite easily, may try that next time
Finally, for you Americans, the plane is Rule 9 proof [X(]. The tail skid stretches beyond the rudder. This plane is built for rudder taps.