I successfully intertwined strands of indigo handspun on an un-dyed interlinked sprang background. I am happy. This move is one that looked complicated in the book, as though it was on another level entirely. Turned out to be easy.
Haven't taken a photo but I did take and post a video.
It is possible, according to Collingwood, to make sprang cloth made only with intertwined threads. Sometime, I will attempt it.