RE: Suggestions wanted... Mid-size bipe.
Steve
Sorry about recommending the ultimate I did not read your original post very good. A sig smith miniplane might be a good one for the OS 70. There are not many small bipes out there to choose from. I personaly would like to see someone come out with a true 60 size ultimate that you could use a 91 4 stroke on. I know that the Goldberg ultimate will fly on a 91 but it is not great unless you put a 120 on it. The Sig hog bipe is good with a 91 on it but I hate building kits and would really like to see someone come out with a nice ARF bipe. The GP ultimate that I had I got in a trade deal or I would have never had it. It was one of the best planes that I ever had. I will probably regret selling it someday. I have a nice 1/4 scale ultimate and a nice 62 inch lazy ace too. Here are some picts of them.
Rick