I think it's taken 15 hours. Maybe more. And now that it's done, I think most of my clues are pretty lame (either too easy or too obscure), and some of the Middle English is seriously tortured (because BD has way too many significant names with awkward letters like U and C), and there are too many answers that don't really have anything to do with either ME or BD, because when you're trying to fill a grid with words like those already alluded to, you can't get too picky about what goes in the background, so to speak.
But it is done! And I'm hoping for some help from my Gentle Readers: who'd like to do some beta testing and skip a day's class prep? E-mail me, and I'll send you the puzzle, and you can send corrections / comments / suggestions.