It’s a pretty basic sleeve, just pick up stitches around the arm hole and knit in the round with decreases every fourth row. It could however get a bit tricky if I have to shorten the sleeve but still want to used the same designs for the cuff. The instructions say that the ecru part of the sleeve should be 15″ long with 66 stitches on the needle. It now measures 15″ inches and I have 70 stitches.
Looks like a good time to take a break and try on the sweater to see what adjustments might be needed.