(SOB!) I ripped out the back, the fronts and a sleeve. My row gauge was waaaaay off, and The Maths were against me
Out of curiosity, does anyone ever have their purl stitches get stretched out? That's what happened to me. I can't seem to maintain tension using the English method. I've never noticed before, but this is my largest stockinette stitch project, so that's probably why.
BUT! It's ok, I've started over and now I'm just going to follow the directions as they're printed (with no Maths) and to keep the row gauge on track I'm going to use the combination method of knitting. It's keen!
Here's a snapshot of my progress. I've done a couple more inches since then. I am going to make the sash longer because me and the cropped sweaters don't get along.