Originally Posted by
number_6
The issue for OP wasn't the QF trans-pacific segment but to get same-day credit for an onward AA domestic segment. So defnitely a risk if there are delays, but 99% of the time it would work out fine. Silver doesn't always get J check-in, it doesn't on QF Int'l for example nor on BA ... Oneworld is pretty weak on the Ruby benefits, but then make it up by making Emerald easy to get.
BA had some troubles in the past, but since a few years they have the ruby symbol at their Business-Class Check-In desks. Having an own ruby tier since a few months has made it easier as well.
QF offers Premium-Economy Checkin, which is better than the mile-long queues of Eco-.