I pulled the back brakes (again) and swapped the shoes around correctly. Darn instructions from Auto Zone shows that the long lining goes to the rear and I believed them even though my memory somehow told me long lining to the front/primary shoe. I certainly makes a BIG difference. Now if I could get my parking brake to hold better I'd be a braking happy camper.
'75 CJ5, 304, Superlift 3", body lift (going away), 32s, 9K Superwinch, old-school Smittybilt bumpers, a working ranch Jeep.