They did change the design of the regular Kaos kit from Bridi to Great Planes to Tower, but just a little and they fly pretty much the same. I haven't assembled one of the ARFs but I have flown one and it seems to be about the same too. There are many different versions, the .60, the Killer Kaos, etc. that are very different and fly different, but the basic .40 has been basically the same for 30+ years, yes I know the stab moved and the fuse is laid up different but it still is basically the same. The one we're talking about here is the ARF anyway... Good plane at a good price...