The first sample blanket for my new lampas warp showed several structural errors. I went back to the original Photoshop file and eventually found the culprits. A second blanket confirmed that my alterations were correct, but the satin weave I chose for the background of the blanket (and the selvedges in the eventual weavings) took up way too much in comparison with the lampas weaves. So I made a new structure for the background—a 16-end granite weave, elongated—and this works fine. I will use it for selvedges. The granite gives a nice grainy twilled effect, and I may use that in the designs as well.
In this blanket, the leftmost group of four circles is shaded satin ground (you can see the gradation from light to dark) with no ties (sometimes called a pocketed weave, as the two layers are entirely separate), and the next group of four is the same, except with ties. The three larger circles are pattern 1, pattern 2, and pats 1 & 2 together.
The back of the blanket is interesting, too, and after this piece is cut off so that I can examine it more closely, I may want to use some of the reverse side weaves as well. It would just mean inverting the pattern presets.