I just finished mine lately with a Saito 72 for power. I flew it yesterday and it performed very well. The 72 made it slightly nose heavy but it was still ok. I had to use a Sig spinner since the one "Phoenix" supplies is junk. The screws won't thread into it properly. Another thing you will want to do is throw away the tailwheel bracked they give you - the wire will break after about 5 flights. The Vietnamese must use real brittle wire because the one on my Decathlon also broke. Setting the airleron throws at 9mm instead of the recommended 12mm made mine more stable. It tracks fairly well and if you make your final approach while landing at about 1/4 throttle then reduce to idle just as you get over the runway, it sets down really nice on it's main gear. The re-tracts seem to be pretty strong as I made a few hard landings while getting used to it and they did not have to be tweeked. Overall, this is a pretty good ARF warbird for the money.