I think with ARF's, one automatically goes into sort of an assumption mode. This mode gives you the assumption that the plane has been constructed right and everything will be fine. All you have to do is bolt it together and sore off into the wild blue yonder. This is unfortunately a real problem with the advertising of these planes. The companies make it seem like you don't have to do anything, which is of course the intention. But, unfortunately, it just isn't like that.