Well, as you said, the wrong platform to make such a decision. A lesson well learned.

What I believe most have talked about with reference to sims is that they are a good platform to practice with. The realism presented is well enough for that, but to use it as a source for data on the real thing, well, I would not do that. What I would do is after I buy a plane, find one like it or similar to it on a sim and play with it there.

Now I had a Goldberg Wild Stick 40 that I put an OS .50 on board. The thing had flaps (real flaps, not flaperons). When deployed, I could do a loop in what looked like the length of the plane. Rolls, with dual rates, woud snap around. But, with the sticks, and the thick wings, I can't see how anyone could get that sort of speed out of the airframe. I have a very slippery Venus II and I don't think I would be able to get 75 mph out of it. But that's not what I bought it for. It is an intermediate sized pattern plane and is very capable. AND, it is on Realflight and I do practice with it on the sim.

CGr