So Much to Learn about Sprang

Am re-reading Collingwood's The Techniques of Sprang and am trying not to go cross-eyed going through all the variations there are to learn.  I follow more of it this time around, which is good.

I have some leftover crochet cotton set up on a frame and I am trying to decide what interlinking try out with it.

I see that it's possible to work sprang like double knitting, which is impressive.  That should go on the list of things to try.  But not in cotton.