[JesseK]

Al, we do this as well, but we use several colors worth of tiny zip ties. 4 colors nets us up to 16 combinations. We haven't been very good at labeling sensor wire since many of the wires are thinner than the zipties can attach to with slipping -- so I'll get our lead to look into this tape. In '06/'07, we also used tiny dots of multiple colors of non-conductive nail polish but stopped because its legality was brought up and was somewhat vague.

Thanks for the update.