Well....just to keep on track of the original post here, and also to share...I sold a Goldberg Sukhoi to a good friend last summer, and he's finally got the bugs worked out. He installed a Quadra 35, and it flies fine, actually very well. No it's definately not a 3D beast, nor is it even remotely what it was with a Moki 1.80(that was awesome combo BTW), but it sure turned out to be a very reliable, and fun plane for him to fly. It's nice when you sell something, and you see your friends having a good time with it. I think I'm as pleased to see it fly again as he is to fly it.