I think I am so smart that I can judge a new-to-me yarn and can guess what it'll do after knitting and blocking.
Here is the first swatch I knit on #8 Brittany walnut needles (my last full unbroken pair, so I like to use them when I can). The Brittanies are single point straight needles, and dragging the stitches along did not allow for a tighter gauge. It appears a little loose after being knit, but not out of line:
Then I washed it, and had QUITE the revelation about what this yarn does, so I quickly got another set of needles and reswatched. I used Flex Needles this time, which allow the majority of the stitches to relax when they are not being worked. The new swatch was washed and behaved much better. Both are shown side by side: (new on the left and original one on the right):
So, after all this, it looks like my knitting gauge is 4.75 sts=1" in cabled pattern. Curiously, the row gauge is almost square: 4.8 rows =1".
Now I start thinking about mapping where cables might go, and how to create a fold line down the front pieces to allow for the double breasted closure Betsi wants.