I admit to not reading all of the thread, but I did read the wiki. Question: if I cancel a JL award on 5-day hold, does it return to inventory immediately? Many thanks!

(If an explanation is required, I would prefer to book an RT for my weeklong trip, rather than two one-ways. I would also like to grab the seats at the 330-day mark. Unfortunately the two preferences are incompatible. So I'd like to book, cancel after 4 days---this can be done on aa.com---and call immediately to hold it again. This works well on EY but I don't fly JL normally. )