Re: Aiming headlight
This is not the most scientific way, but it seems to work. I just go for a ride in town and make sure when I am a couple of car lengths behind the smaller sedans that the main top edge of the beam is just below the top edge of their trunk. This gives great reach out on the road and keeps everyone in front of you from being mad. I find if I go above this level then I will get flashed often. Below this level I have never been flashed.
Personally, I would HID the high beam also. The amount of light with both lights HID is awesome!! If flashing is important to you, install some aux halogens to flash with. I use some lightforce halogens to flash with if I feel the need.