So I got to the end of the increase rows if I make the size 38, and the sweater is pretty tight at the armholes, so I'm going up a size or two. (You can also see how messed up the neckline is. Maybe I need to repair that sooner than I had planned.)
I think one reason for this is that I'm ending up with a tighter gauge than I had originally swatched, probably because of cable flare.
It's a pretty straightforward pattern, the only stupid thing is the misalignment of the cables that keeps it from being utterly mindless.