I flew 4 flights today on the UCD with the OS 90FS. Brand new motor so was running it rich to break it in. With Top Flite Wood 15x6 for break in it was turning about 7000 rpm. Hovering was no problem. Somewhere around half throttle to a little bit above to hold it there. Was able to knife edge loop it. Didn't rocket out of the hover but again this motor is right out of the box today so I didn't want to push it hard...after another gallon of fuel I'll lean it up a bit more and play with some props.

Other than that the flights were all perfect....don't want to give too much away as I'm writing up the full review for the mag which will be in the next issue in around 2 weeks. Suffice it to say this plane is awesome and LOTS of fun.