I just ordered a MT Extra 300 .25- I assume this is the one you refer to. I paid $79 bucks for it at Sheldon's Hobbies online. It sounds like a lot for the money. I plan to put my .30 FS Magnum in it. I'm not looking for 3-D performance. In fact, I'm going to widen the ailerons and use them as flapperons for slow landings. It looks like my plane will have a loading around 20, and I like lighter planes. From what I have read, the standard plane will run over 4 lbs. With your FS, you may have to move weight aft to balance the model, but I'm sure it will fly very well- should hover with a low-pitch prop. You may have to bend or replace the landing gear to clear the 12" or 13" props that would be best for your combo. Good luck! John