One other trait with HID lighting that most people don't realize is that for the HID bulb to 'fire off', it takes a lot of amperage. Once it's running, the draw is much less. All the R3's have 'always on' headlamps and the current draw across the battery from the HID and the starter could get to be too much for the electrical system or the battery. If I was to go HID, I'd put a seperate switch in to disable the headlamp until the bike was running, just to ease the load a bit.....