Bill, I never would have thought of what you suggested.  My first reaction was try to make verticle stripes using some nodes and use those to mess with color.  The I saw the base of the hair and thought if someone wanted stripes there as well, things would get a hole lot more difficult.

My frame of reference at the time, as it's usually from out of nowhere, was the whole image map and getting maybe 1-2 streaks in specific areas.  I wasn't even thinking about how hairs are usually set up.  Many are for ease of striping, which is why this one would be trivial as you said, but not all are. 

WARK!

Thus Spoketh Winterclaw: a blog about a Winterclaw who speaks from time to time.

 

(using Poser Pro 2014 SR3, on 64 bit Win 7, poser units are inches.)