I wanted to try novajo plying with my yarn rather than the traditional plying... so here is my first try:
it's romney wool and is very over twisted and feels like rope...
wool blend and much better, but a very chunky yarn.
and the third time is apparently the charm:
merino fiber from handpaintedyarn.com. The single is much finer and I made sure not to overspin the single, then worked really slowly while plying. This one I love. The color stays together very nicely. I can see using navajo plying quite a bit.