Thanks so much for the advice Lisa! Well, it turns out REI is sold out of the Shaks in medium, so I just ordered one in small and will see how it works. I'm still vacillating on the Carrie however you know, it's just hard to justify spending more to get another cardigan when I've already got one hoodie that I love, and the Shak may meet my needs better anyway. Besides, haven't I sworn off new wool purchases repeatedly over the last year? I've got a deep drawerful of wool (mostly Icebreaker, some Ibex and Patagonia), and there's no way I could wear it all unless global warming gets reversed really soon.