I took a photo of the single on the drop spindle, showing some of the yellow coloring. I do not really consider this a problem, although I won't leave the yarn white. I will plan to dye the yarn to cover the inconsistent natural color. The yarn I'll make with these locks is definately worth that extra step, and I would not like a white shawl anyway, my intended project for the yarn. If one was thinking of a baby shawl, then it would be worth looking for a white shetland with no yellow to it.
I sent most of the locks to a fiber exchange partner, but kept six that I combed out with a metal tooth dog grooming comb. These I spun on my Bosworth mini drop spindle, shown above. It was almost too lightweight but my next size up spindle would have been too heavy.. I found my arthritic fingers did not like that flicking motion one makes on the shaft to get it moving, and I went to the roll on the thigh which, once I got past the tendency to go into 'carreen' mode, actually worked really well. Final details on the yarn: (weight to follow, my scales battery is dead) 23 WPI 2 ply 5 yards sample.