That is fine for just flying around in knife edge. And maybe for knife edge loops.. although harder. But.. when you start doing things like rolling harriers or slow rolling circles.. it is a fight to even do those things let alone get them to look nice, smooth, and even. I guess it depends on what level you want to fly, but, the more advanced you get the more you need the plane to fly right. I am sure if you were good enough you could win the toc with a ucd, but, it is a lot easier if you have the right plane... and even easier still if that plane is set up right. I don't want to even do the toc, but, the point is.. I want to try some of the more difficult moves without fighting it the whole time.