I am making this in sock yarn by using the numbers from the largest size in the Tiny Rocky Coast with the schematics from the Rocky Coast. I’m using a slightly thicker yarn and bigger gauge to help achieve that.

11/11
Up to 216 sts per row. Slowing me down, but I’ll be able to separate the sleeves in about 18 more rows. I might not even need additional inc for sleeves because the gauge is looking good! 

11/15
If you’re a wacko like me that only wants to knit with sock weight yarn, I did one full additional increase row for the sweater, then I did additional increases on just the arms for the next 6 knit rows. I don’t want to give too much info about the pattern away, since it is for sale, but if you are working from the pattern you would be able to figure it out with that info. I wanted to make sure the arms were a bit wider and the yoke was a bit deeper, since many knitters had issue with that on the Rocky Coast.

12/8
I made the arms longer and ended the decreases when I still had 56 sts on each sleeve. This seemed like a comfortable amount.

Finished sleeve length 17 3/4”. Finished body length from underarm 16.5”. Both of those measurements include the ribbing.