andrewlily, I think your missing the point everybody is trying to make here. For starters you are spendind WAY TO MUCH TIME trying to anilize the situation. Second if you really think that fx46 is going to pull your aresti in excess of 100 mph I want some of whatever it is your on. Third nobody who knows how to fly does it at full throttle all the time, that is only used on the up lines and even then not all the time. The best prop for your plane will be the one that YOU like the best, and the only way to find it is to try as many combinations as possable. A prop is a collection of trade-offs and the list of variables is almost endlist. No two motors run the same, altitude and humidity have a major effect, nitro content, plane weight, flying style, plane set-up and many more. One of the nice things about small engines like yours are that props are cheap, this gives you time to learn before you get to the big gassers and props cost 20-30 dollars or more each.
I think you will find this kind of expirmenting is part of the fun, and in the long run will make you a better pilot.