Let me add that on some projectors, like a ece valeo projector, it has a lever on its side that can change the flare from LHD to RHD or vise versa. I think some are build Just one side flares... But for HID, it's all about preference, if you don't want to glare drivers on the left I suggest that you keep the flare:
___________/```````````_____/`````````````
Most DOT HID, we don't have to worry about the step flare...
________^------------_____^-----------
(Something like that)
If you are going to a projector retrofit; you have to make sure that the cut off are as streight as possible.. or else, you'll make the same mistake as I... :-D Search for my post regarding HID and you'll see my cutoffs..