A little update. I've put the CG a bit more to the front. The snapping is less, but I'm watching it all the time. I've put a 15x6 prop back on and I do now only some precision aerobatics. Now the engine has 1.5 gallons runtime.

@crhammond

May plane also rolls a little to the right. I've only need 3 clicks of trim.


Thanks for the reply's !!