Why almost perfect? I should have done the neck differently. But I love it regardless.
Here’s what I did, to the best of my ability to reconstruct it from my notes:
Malabrigo Chunky in Natural, 600-ish grams (6 skeins plus about a yard, oy); gauge is 3 sts and 4.5 rows per inch
CO 60 stitches on US11 needle; ribbed 2×2 for 2 inches; increased evenly to 74 stitches on following round (via pfb).
Marked off for raglans as follows: 2 stitches per raglan seam, 23 stitches each for front and back, 10 stitches per sleeve ( 2 | 10 | 2 | 23 | 2 | 10 | 2 | 23 )
Worked increases as a kfb on either side of the 2 raglan stitches. Aiming for an eventual 40 sleeve stitches (x2), 57 body stitches (x2), and an armhole depth of about 11.5 inches, I increased at all eight increase points on round two, then again on every 3rd round through round 36; on 37 and 38 I increased the body sections only. (For more on my raglan decision-making, see A tale of two raglans.)
Worked the arms first: CO 4 stitches for each underarm; marked center of underarm. Increased 2 stitches on the 8th round (I know, weird). Decreased (k2tog/ssk pairs) at 6 inches and on the 8th, 14th, 18th and 22nd rows thereafter (i.e., counting from the 6-inch mark). At row 26, switching to US10.5 DPNs, decreased evenly (p2tog) to 28 sts. Continuing with US10.5 needles, ribbed 2×2 for 5.5 inches, BO in pattern.
Body now 114 stitches. On first round, adjusted markers to mark off the two stitches at the center of each underarm. On every round, purled those two stitches and twisted the stitch (ktbl) on either side of them. Worked in that fashion for 10 inches, then divided the stitches evenly into front and back.
For the split hem, and a nice substantial edge up until the ribbing, worked in stockinette with I-cord edging at each end for 1 inch. Adjusting stitch count to 58 stitches (so there would be a pair of knit stitches at each end), switched to 2×2 ribbing for 2 inches. BO in pattern. Repeated for the other side.
More background and details on the blog.