RE: Cox Pica Dualist ARF
Yes, prop clearance will be a big factor. On my other Duelists I ran 10/6 on old K&B FP 40's.
My Dual Ace has 11/4's on my AX 46's, but if I do not grease the landings, I get prop strikes. 10/6's make it too fast and I worry about flutter due to the speed...even with fixed gear.
Bo