Hi Bill. Congrats on your purchase. Don't get the part about the banner though. Anyway, It depends what you mean by "authority". I'm no expert, but I think the FX's will definitely make you happy, unless you plan on flying it like a sport plane like some people I have seen. Capt Crackup and I pretty much stick to scale flying with our .25 LS's, although he has done a couple of rolls and easy loops. There has been a noted problem with a wing giving way these models [>:], but the way we have seen some people fly them we are not surprised with the wing loading and wingspan [&o]. We don't forsee any problems. I really think your FX's will be great. We are turning APC 9X5's, and are getting ready to experiment with a set of 10X4's. I would think with your FX's, you could turn 10X5's. Will probably have to experiment. Did you see our Video's on RCU videos? Just curious if you saw my lights and rear hatch modification? If you are thinking about lights, it is best to do it during construction before placing the wings together. Best of luck, and feel free to contact myself (Jeff) or Capt Crackup (Skip) if you have any questions. Later. Jeff [8D]