The ST290 (which I also happen to have lying around) doesn't have a "twist axis" which makes it a bad choice for flight control. The F.L.Y. does have such an axis, and would be a fine choice. Again, I think it comes down to how it feels to you in hand. I would run down to somewhere local, like Best Buy, and try a few different ones. You can always walk out and buy online if you find it's cheaper that way.