I flew mine for several seasons with a Saito .91. It was a very nice flyer, plenty of speed, nice vertical performance. My gripes were shared by many, it tends to nose-over in grass and the gear wire was too soft and would bend back even with the gentlest of landings. I replaced the gear wire with heavier music wire and canted it forward a bit, both problems solved. It was a floater on landings, it tended to overshoot in no-wind conditions. I solved that with spoilerons, brought it down quickly when activated. All in all it was a great model.