Making 4-shaft Interesting

I've been pondering ways to make 4-shaft weaving a little more interesting for cashmere projects. One near-future project may be a combination/composite of these units. Not that I've completely given up cashmere-on-16-shafts just yet. Then again, it was nice to be reminded Davison has lovely drafts that never get old.

EDIT: You know, I just had to see all permutations, so here they are.