I have an Ultra Stick 60 with a Saito .82 which powers it nicely. But I did have a Super Stick 60 with an OS 61FX and that was a great engine on that plane. It was fairly quick and would hover. The Super Stick 60 is smaller but heavier than the Ultra Stick 60 by around a pound so who knows. It could turn out to be a decent engine for the Ultra Stick.