2019-04-24 How Embarrassing!
Oh, how embarrassing! I'd attributed the 20% Bran Flour ideato Joe Ortiz, who wrote "The Village Baker", when it should have been attributed to Dan Leader, who wrote "Bread Alone". Since I haven't heard from either baker/author's lawyer, I assume no one noticed, or cared. Still, apologies to both gentlemen, as well as to the readers of this page.
The convection oven is still soaking in oven cleaners. I hope to finish cleaning it tomorrow, burn off the residue, and then bake in it again on Monday. With luck, pictures and comments will follow.