I've wanted clip ons for my ST3 for a while, but they're pretty expensive. OEM Daytona clip-ons are bolted to the top yoke, which has a tapped lug to accept a bolt. The yokes aren't interchangeable, because the geometry of the ST3 and Daytona is slightly different. Anyway, my old man's a fitter and turner and he's suggested manufacturing a ST3 yoke with a lug to accept the bolt. I'm not a fitter and turner, so I can't give you the technical details of the machine, but it'll be done with a Mazak CNC that's worth about $1 million. Not sure about cost or anything as yet, but I thought I'd see if anyone else was interested, and get an idea of what people would be willing to pay - if you are interested, PM me and I'll get back to you when I can figure out whether it's worth doing or not.