I myself have been wondering if I should bunker some of the 7yo. Believe it or not, I've yet to see the NAS here in OR, and thus haven't tried it. The 7yo still seems to be good supply.
That could change almost overnight. The change from the Guyana produced Zaya rum to the Trinidad version seemed to happen everwhere and over a period of a few days.
If the date on the bottom of the bottle is 05 or earlier, grab them. If it's 06, it's iffy. If it's 07,07, or a 42/anchor, leave em. OWA was my favorite pour but now that I have dried up the pre 07 juice, I drink OGD.