I too ordered one at WRAM although I ordered the ARC version. I will be powering it with a Saito 180 there is no comparison between the 180 and 150. The 180 weighs less and gives you more power. Either will fly the plane well but the 180 ist just the better of the two. I talked with Dave at length about the Ultimate and along with the 180 I will be useing Hitec servos that he recommended. Hint: the prop size that he reccomends on the 180 is a 17x10 for best all around 3d flying. Let me know if you have any questions would be glad to answer any. He also showed me his Edge 540 that will also be avilable in 2 color schemes the one he had at the show was the Purple and White model but he is also comming out with a very pretty Yellow, Purple and Red scheme which is just gorgeous. By the end of the year I plan on owning all of his models .