The manufacturer does not recommend the 10-6 for anything other than break-in on the .46 Pro & it is not nearly enough prop for that engine on that plane to get the full benefit of the powerplant.

An 11-4 will fly it to the moon -- straight up -- but, like the 10-6, will scream on the level at full throttle (~15,000+ rpm).

An 11-5 or an 11-6 are both very good & will still give unlimited vertical & as much level speed as is good for you or the plane.

An 11-7 is too much load for optimal performance with that plane-engine combo.

If you had more ground clearance, a 12-4 would be an outstanding choice. I have modified Avistars to tail draggers & used 12-4's on them -- a killer combo for aerobatics.