The Sisu yarn is very springy. It is quite a bit thicker than the Lang Jawoll, which could be worked on smaller needles. The toes used about 3g of Sisu each.

I decided I wanted to stretch the yarn and use some in another pair of socks, so I only did 25 rounds after the gusset decreases.

Ribbing: 16 rows on 1.75mm needles. I recommend using a larger needle (2.5mm) for Judy’s stretchy cast off (one sock is still too tight).