i magine it would actually be quite simple/cheap. i have a friend who works for an online retailer, and their site tracks inventory, and its definately not a big operation. the point about not having 9 pairs, while you make perfect sense, not all sizes are available in both colors. i thought that meant taht at least before the whole crew seems to have gone on holiday break, the inventory was updated, altho they might have sold more than they have in stock since. i dunno just guessing of course.