Hi, I tried contacting Martin as well, but it would not allow me. Anyhow,
I have a few interesting notes to add to your knowledge bank, since it appears that you are the headlight guru here. I took my previously mentioned '96 HID housings out of the box, as I was going to attempt the re-chroming process on them. The chrome looks great on them, despite discoloration of the lenses. I am guessing it is partially due to the environment, but also the cooler burning Xenon gas.
Now here is my bit, the deflector in the low beam side is chromed on the outside, but has a matte black finish on the inside of it. I guess if they chromed the inside it would project the square shape of it. It also appears it may be polished stainless as well...