There's a bunch of vintage Japanese bike fans living west of Toronto that get together for coffee in Belfountain. Last time I went there were 4 mint CBXs in the lot, 2 GL1000s, and a nice CB1100.
A Toronto area racer (Frank Mrazec) tried to campaign a CBX. I rode a lap at Mosport on it and even with a lot of stiffening and suspension work - plus whatever could be spared taken off - it was too heavy, too flexible, and was a handful (plus maybe an underwear full) to get around the corners even at my way-slow speed. Possibly Frank's theory was that if he got ahead on the hole shot nobody would be crazy enough to try and pass him as it hogged through the turns? It sure sounded wild with the race pipes though.