Thanks F2Racer, you are indeed very knowlegable on Mustangs. You hit the nail on the head! I wanted to put in my 2 cents on the OK/Altech P-51. I am now on my third in the last ten years. I'm not sure how they do it, but the OK P-51 flies much better than it should. OK must be hiding some secret airfoil. I think it is the most "scale" of the P-51's. I do say that loosely, as none are anywhere near true scale. The Chrome finish is stunning when new, but can scratch easily. The foam board is actually very forgiving of hanger rash and holds up well with a lot of use. Being a true "ARF" guy, repairs consist of ordering replacement parts it if needed. It also uses "metric" hardware, but I replace all with quality stuff from the local hobby store anyway. All of my OK Mustangs have been powered by .60 and .75 two-stroke motors, and one had dual batteries, seven servos and handled the weight w/o developing any bad habits. The servo driven sliding canopy "Dallas Doll" version was my pride and joy back in '94. My current OK P-51 is powered by an OS .61 and flies just as good as the older ones. It have it trimmed to match "Wee Willie II" out of Chino Ca. I havent flown it much because I don't have access to a paved runway. The gravel was damaging the finish, so it is hangered for now. For those looking for a high quality (pricey!)alternative, the OK/Altech P-51 is a nice choice.