Maidened my UCD 46 today and over all I can't say I'm that impressed. It flies like a very lightly loaded airplane, and that's about it. After about 6 flights I'm slowly ratcheting up the stress, and it seems to be taking it all very well. Very easy to hover. Needs more right thrust. Doesn't do harriers all that well, even with spoilerons up. And what's up with the wicked coupling in knife edge??? Maybe a cg change? It's exactly 5.5 inches back. I spent about a day tightening the covering, and it still drums like it's going to explode at any moment! (reminds you that if you go too fast it will!!) Forget the recommended throws and swing 'em as far as possible, it might almost be enough. Not that I'm unhappy with the airplane, it flew almost hands off from the get-go, lands at a crawl, no bad habits (except the coupling) and is extremely honest. 5.5 lbs Saito 72