Just FYI, the second loaf turned out very well, with a dense crumb and a good crust. I finally saw a photo of what Ruhlman meant when he said how the dough should stretch, and I realized that I hadn’t kneaded it enough, in spite of it spending 20 quality minutes with a dough hook. I suspect I’ll need to pull the dough out of the bowl and hand knead it for a few minutes to get it to where it should be.
Still, for the second attempt, it was pretty darn good.
And now I have to go and do some writing. Consider yourselves updated.