I could pull all black for the ungrounded conductors or purple or pink or any other color as iwire has pointed out. But why would I?, to save $375.00 on a $260,000.00 dollar job in wire cost?

I have no problem at all with buying the full reels of wire, as I said before it doesn't spoil and I will use what is left over on the next job or maybe the one after that.

Having some #8 and #6 white on the shelf and ready to use has never hurt me, so I fail to see what the problem is. (of course I also have 1/0, 2/0, 3/0 copper, about 900 assorted new and used breakers, and 200amp 30 space panels along with 125, 150 and 200 mainkits for them.)

Yes I have some wire reels that I "might" not use use again for a year or more. It is part of the cost of doing business and when I get that night call-out and I need some #6 white I will have it.