it really shouldnt matter how segmented the reflective housing is. I really think its your bulb placement as well as the black housings. Way i see it, if you have part of the housing painted black, light cant reflect around in the housing as much, therefore, making the pattern weird.

i also know that stock housings with hids have bad light output. mine did, but i added some hid fogs and it made it one big, wide, beam of light out in front of my car.