To put a final point on this thread (against the day when GP brings this ARF back), I have been flying mine with an OS FS-91 Surpass (original version) for just about a year now, probably 50 flights. I have had exactly the same experience as Jim Widner had with the prototype model; it flies perfectly well with this level of power. It does not do 3-D, and if you constantly require too much motor to get you out of trouble, then I guess you would want to go bigger. But any reasonably proficient pilot will find this combination entirely satisfactory.
Oh, and by the way, with the stock tank (about 12oz I'd guess), I'm able to set my flight alarm for 15 minutes, and I have never come close to running out...
Last edited by RickVB; 05-20-2016 at 10:14 PM.