The 91 is TONS of power for the funtana.
Mine seems to hover at just past half... but the throttle response isn't that linear on my stick. I think the engine is probably making about 75% of its power when I'm at half stick (hovering). I have plenty of power so that when I do fall out of hovers, I barely loose any altitude... it just sort of flies out. I'm still using a 15x6 APC though. I'm going to switch to a 15x4W when I get the chance. That should make things even better

Flying with the 91 basically consists of cruising around with the engine just above idle... and then using more throttle when you need vertical.

Only downside is that the OS 91 seems to weigh alot. My flying weight is around 6 lbs... where most people with Saitos are advertising about 5.5lbs. Even at 6 lbs, the plane floats like a trainer though.

Tom