Thinker, I bought one of Ice's HID units and installed it in a couple of evenings. I took time to think things through and it came out perfect. Couldn't be happier. HID is MUCH brighter than the 100 watt Xenon/halogen bulbs and is daylight colored. Visibility is better too in more natural colored light. So much so that you don't need the brights anymore (It just washes out in the HID beam and completely worthless and that is why we buy a all-weather yellowish bulb for the high beam). I should mention that the HID bulb won't fit in the high beam socket. It only fits the low beam socket and needs the low beam reflector to work. The bigh beam magnifying lens also doesn't work with an HID bulb.
When setting mine up, I gave a lot of thought to the wiring. Stock configuration, Low beam is always on and we switch the high beam on and off with the switch on the left grip. HID is obnoxiously bright in some situations and better if it is switched. Not wanting to add extra switches, I just used the stock left grip switch. I simply took the high and low beam wires in the nose cowling connector and swapped them. The connector pins can pull out and slide back in the connector in place of each other. Since the HID draws only 35 watts, the stock wires can be used and all of this can be reversed with little effort and no mods. So now when I have the high beam switch off, the HID is off. The "old" high beam is on all of the time. Now it is my fog/rain/snow light. It is re-aimed as low as it goes now and won't blind on-comming traffic. The "new" high beam is the HID and is switched on when I want it. Ice also has done a ton of research on the best control box to get. His allow multiple "hot" restarts with out a cool down delay. They have other great features the other brands don't have.
IT IS TOO COOL!!! It is like riding in the day time but at night. Its alot safer too. You can see things/animals in the road farther out and cages can't miss you. They woud have to be blind.