I'm not planning on reducing my 250 to a 200. I'm just interested in the performance of the Wurks pipe in general as I'm getting a Sphynx cylinder and will be in the market for a pipe. As they say, there is no replacement for displacement so I wouldn't expect even the best 200 to keep up with a 250, especially a modified one. I read somewhere that Jimmy White and others started the small-bore 2 stroke trend because they wanted to test tires and get in extra practice time. I love old-school rebuilds too but I'm not a purist. I'll use old-school parts when I can find them but it is a little too frustrating hunting them down, paying top dollar, etc. To each his own. I'm glad the old-school purists are out there because I enjoy seeing their builds.