It ended up being way more complicated than it needed to be, but at last my Marius Sweater is finished.
When I last checked in, I had realized that my gauge had changed once I started in on the patterned portion of the body of the sweater and had ripped that section out and started again on larger needles. This absolutely did the trick. But then, after re-knitting about 2/3 of the black-and-white portion, I realized that my yarn dominance was off. This means I was carrying the wrong color in the wrong hand. Ultimately, this doesn't really matter, as long as one is consistent with which color is carried in which hand. But I really wanted he white color to pop, and I had my yarn configured so that the black yarn was dominant.
In the picture to the right you can really see what's going on in the striped steeks. At the top, I carried the black yarn in my left hand. At the bottom, I'd re-knit the same section with the white yarn in my left hand. When knitting with two yarns, the one in the left hand tends to stick out, for most knitters anyway. Usually, I consult my copy of Ann Feitelson's The Art of Fair Isle Knitting before starting stranded colorwork to make sure I get this right, but this time I was just sure that the dominant yarn is carried in the right hand. Oops. Wrong. So, I ripped back yet again.
The third time was the charm -- gauge and dominance were just fine. But I'd already knit the sleeves. With the wrong gauge and the wrong dominance. So I re-knit those, too. It really didn't take that long. The pattern in the sleeves is simpler, without the complex X motif of the body. When finished, I crocheted the steeks, cut the armholes open, and sewed on the sleeves. They fit really well, to my surprise -- I saw a lot of examples online that looked bunched up. And then I tried it on.
The sleeves were too short. About 6cm (2.5") too short. You can't unravel a cast-on edge. Well you can, but you'd go insane. So I picked up stitches just below (or above) the cuffs, snipped off the cuffs, added 6cm of stockinette and then re-knit the cuffs. And THEN I was done.
This really is a cool pattern, and not as complicated as I've made it out to be. I just got so excited to get started that I forgot a lot of the details that would have made this go smoother. If I'd been more thoughtful about gauge and yarn dominance, I would have had this finished in half the time. Fortunately, I'm a total process knitter, so getting it right doesn't bother me. And it wasn't like I was on a deadline -- I only had to have it finished by December, when I'm going with my family for a big ski vacation. Even if I just sit around and sip hot adult beverages the whole time, it will have been totally worth it.
Winter is coming!