So as long as I book on an AA flight # on a OW metal (usually AA/QF/BA I would think) I should get 100%!

If it's a codeshare say QF metal, are all the `L' class availability available to both flight numbers.

I know this is a bad analogy but say there's 100 `L' class seats, do 50 go to the QF # and 50 to the AA # or 70/30 or are the 100 available for whichever flight # gets them first.