I'm considering the Midwest Citabria as my next kit, and the only engine i have available is my OS 1.08. I know this plane flies great on a 91 4s, but I don't have one of those laying around. I'm not concerned about having too much power, but I am concerned about the weight and balance, prop clearance, and would it fit in the cowling? I'd be using a 15-8 prop, or a 16-6 if it would clear the deck. I know lighter flies better, but this plane is a floater as it is. What is the actual finished weight of some of yours that have been finished? As I see it, 9 lbs. is a good max weight for this engine, but I'm not sure about the wing loading.