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.