I've finally finished this epic shawl. Three skeins of Classic Elite Silky Alpaca Lace, most of it in garter stitch. The edges are worked in a feather and fan pattern, with a picot bind-off.
Lesson learned: garter stitch, especially when worked in the round, is not for the faint of heart. Like me, apparently.
But now that it's done, I'm in love. What was fairly dense on the needles blocked out to be light and airy fabric with a wonderful drape.