What you can't tell from this picture is that the opposite side of each of these is a different color, most of them a darker version of the one facing the camera. The color transitions are short and sharp which can be problematic.
What I do with these is split the six ply in half and reverse direction or just "color jog" half and then put them back together. Does anyone but me get that? I recently joined the Mildly Offensive Fiber Artists on FB...this stuffs looks right up their alley. Glorious, dirty string.
update - I ran to HoAnn's and scored those cardboard bobbins. You can see below the variations better now and the deeper you go into each bobbin, the less white there is. Lessons learned.
Still they are quite tasty. I'll be selling some of them in the shop soon.