Well, it seems I am not a project monogamist. As soon as I finished my dad's socks, and all I had on the needles was the scarf, I needed to have another project on the go. I pulled out a pair of socks that was featured in not one but two stuck-UFO posts, and got them back on track. Here's a recycled picture, because the socks, though I've been knitting on them for days, don't look any different. I ripped out the heels, added nearly an inch in length, and then redid the same heel. Fit problem fixed.