I took the original pattern for sizing and tension. I ribbed the 1st 4 rows and then did a pattern of 2 purl rows, 2 knit rows. It pulls together like a ribbing so I blocked the back and saw that it was too large, ripped part of it out and redid it. I had that then for a sizing pattern for the rest of the sweater.

17 ribs to sleeve shaping, 10 to shoulder
On front, 4 to neck
Sleeves. 17 to marker, then 3 more
Hood. 16 to decreases, then 2 more