No, not wanting to reignite that particular debate. Just installed a light switch on the R100RS. I got sick of having the dinky little blue LED that illuminates the cycle speedo lit up in daytime, and the only solution was to install a switch. Rather than just switch the LED, I put in a headlight switch and hooked the LED up to it. Push/pull switch mounted under the dash, with a home-made clamp attaching it to the steel frame of the fairing. A similar arrangement holds the Cycle speedo and its light. I wasn't keen on cutting holes in the fairing or dashboard. So now I can collect my own anectdotal evidence about the effectiveness of daytime lights. (although I have set it up so that the parking light is always on, so it may not be a very reliable 'experiment'. Moike