I think for gray on top, blue on bottom might work well. Mostly, I've been contemplating one gray herringbone. Something brown on tan seems plausible, but some version of blue seems in principle possible. Of course depends on what sort of blue. There's a monotony of mid gray that seems worth breaking in the course of a weeks fits. JRD thanks for the link. Will check it out. I started Mantons book. Was fun though I didn't finish it.