Blue Moon Fiber Arts Socks That Rock Heavyweight: 350 yards per 198 gram ball
The Blue Moon Fiber Arts is 100% wool, the Trekking is 25% nylon, which explains some of the difference in weight per yard. The BMFA is also just a tiny bit thicker, but I get the same gauge with both on #3 needles.
So, if it takes me 79 grams of Trekking to make a pair of socks for myself, it should take me:
(427/150)*79 = about 225 yards
Multiply that by (198/350) = > 127.2 grams, or round to 128 grams, of BMFA to make a pair of socks.
I have parts of two skeins of BMFA under the bed. Is it enough?
--Quick check with the scale.--
YES! There are more BMFA socks in my future! Yay!