I don't need 12+ months shelf life; it would be just nice to have. I ended up ordering some Unibond 800 because I've used it in the past and I know it works. I do plan to give the Ultra CAT a look see in the near future as it looks like the perfect replacement for Weldwood PRG. And I may try a test panel with TB Original just to see how it behaves over a few months.
Thanks for all the help.
John