This was for the front. The back took more work and I'm uncertain what, exactly, I did. I know I traced both patterns (original and block) and then fussed with the lines until they looked right.
When cutting the fabric, I took up the back shoulders by two inches to accommodate the swayback. I didn't take a picture because it was a guess based on everything I have read. I know I need at least three inches taken out, but also know that more than two distorts the armhole too much, even though the shortening is done at the neck side of the shoulder.
I think the front armholes are much improved. There is less wrinkling. The back armholes still need help and I have to figure out what to do with the leftover inch of excess fabric from the swayback. I got Annn Ladbury's Dressmaker's Dictionary from the library and her solution, like others I have read, is to take up the excess fabric from the shoulders. I'll keep working on this problem.
After finishing this on Sunday, I spent Monday working on a dress. I'm still working on it, but I think I have improved the back armholes. Hopefully, it will be finished in time for next week's post.
Another note about this strange fabric. I spilled tea on it and it blotted off as if the fabric were treated for upholstery use. Do people use knit fabric in home decorating? I wouldn't want a wardrobe made from this stuff; it holds odors and inhibits air flow, but for wearable muslins and at 33 cents a yard, I'm not complaining, only curious.