Sigh - you can't always mix kids with your hobby. I should have double-checked my WPCREDIT finding. Sorry folks, that SS above does not show the right register - either that or 8rdavcore is setting something else.

With 8rdavcore showing 32, 96, 248, *anything*, WPCREDIT shows offset OD as being set at F8. So I haven't found the register or registers being set by 8rdavcore.