I have finished the area that will be "on view." That part is a bit longer than the others--14.5".
The purple section you see on top will be the hem for the casing. I am weaving that with blue and violet weft threads alternating.
As I wove the last few inches, I noticed the selvedges, especially the left selvedge, not being quite as nice as they had been. Occasional tiny loops formed.
A while back, I had discovered that if the shed was not totally clear right down to the fell, I would get loops. Go here to read about that. This was not the problem here, so I needed to look elsewhere for a solution.
Normally when I have been weaving this piece, The fell has been only about two to three inches from the front beam and I would move the cloth whenever I had woven one to two inches. Today, however, I did not move the cloth. So I was weaving, towards the end, with the fell at a much greater distance from the front beam than usual.
SMALL VS LARGE SHEDS
Words from a weaver I greatly respect that I heard when I first started weaving came into my head: the smaller the sheds, the better the selvedges. I didn't do anything with that because at the time I was weaving on a counterbalance loom with huge sheds. And my current loom, despite its being a jack, also has large sheds.
Looking at the warp with sheds open, I saw that the closer to the beater I look, the wider the shed is. The closer to the front beam, the narrower or the shed. So I started half-way closing the shed before I beat. It worked.
My best guess at this point is that with a narrow shed, when you beat there is less opportunity for the weft at the edges to shift out and so create loops.