I’m glad I happened up on this thread. While trying to skin my 2nd cockerel, at 23 weeks, I thought that maybe I just had beginners luck with my first one, at 13 weeks. There was a world of difference in just 10 weeks. I remember thinking what in the world? My first bird didn’t give me this much trouble. Yes, the wings and back were the worst, but overall, that dang membrane was a lot tougher too.
My 3rd cockerel, at 25 weeks, I dunked and plucked. Much easier.
And after reading this, I know now NOT to pluck a molting hen. I’m glad we can all learn from others’ trial and error. Thanks @aart for putting this out there.