I will confess(with shame) that I've never saved deer ribs due to the horror stories about the tallow. I would assume that with this method what isn't trimmed would come off in the pressure cook step? I will admit that most of the deer I take are "opportunity harvests"...i.e. they were old enough to walk, they were old enough to eat! Very few fought in the heavyweight division.(my point being I don't know they'd even merit a lot of time fat trimming if I could skip that step) Any good youtube vids out there on the rib prep?