Skillet, did you mean to say Hitec "645's" ? Correct me if I'm wrong. And that's excellent advice on the differential application. Futaba 3010's would also be an excellent choice for the four aileron servos. [Or even Hitec 475"s if available]. I'm 57 and the wife has caught me a couple times already stairing out the window with a smile on my face. She says. I'll bet your day-dreaming about flying that Waco, aren't you ?. Sure Honey, let me take you out to dinner tonight.
MM