Here's the reply i received:
Pad glazing can happen if you do a ride where there is excessive braking throughout the ride on terrain like descents. Sometimes it can come from riding in poor weather conditions as well.
Acetone is another cleaner that is acceptable to use on the rims. Do not use Simple Green as it will leave a dull haze on the rims. Use soap and water to remove the most of the dirt and grim. You can then use the green side of the scotch brite pad to work on removing the deposited brake pad material on the brake track.
Zipp Speed Weaponry
I'll use soap and water as suggested and clean the tracks with a Scotch Brite and Acetone. Butt he pads were new with under 50 miles and 1600' descending. I would not say there were excessive braking. Let's face it, Long Island is pretty flat.
BTW... I did confirm that the toe in is correct.
I never had any problem for the first 7 months and 3400 miles.