I don't know why they say they barely fly, theres no reason they shouldn't. Now, I have a Tensor 4D and I hope you don't mind if I can give you some advice. Firstly, when building, be sure you have everything checked and correct, since this plane is one of the tougher foamies to build. Secondly, be careful about the cg, seeing as how it has a very small range. One more thing is the landing gear. Be sure that you install them correctly so as to lend at least some stability on landings.(I didn't) On the plus side though, this is supposed to be one of the best planes for knife edge flight, with the large side force generators. Additionally it has to be one of the most beautiful foamies, it has an exellent roll rate, and I've found that low speed performance is quite exceptional. So I would certainly recommend this plane to you.