Thanks for the insights Mark. I agree that TBIII has it's shortcomings, especially with regards to creep and tendency to fail in hot conditions. Somehow I just never viewed Gorilla Glue as a better choice, perhaps because it's such a pain to use. Then again, Plastic Resin Glue and epoxy aren't the nicest things to work with either, and those are my usual suspects when eliminating creep and problems at high temperature are first and foremost. But maybe I'll have to take another look at GG in some of my own torture tests.
FWIW, I have several outdoor projects I've made over the years, mostly with redwood, but also some with black locust. All were glued with TBIII and not one has showed a sign of failure, even one where I edge glued several 3" wide boards together that is completely exposed to rain and sun. 20 years and it's still fine, which is quite surprising because I have had TBIII joints fail at high temperature. Curiously, those failures were with WO and Sapele which are much denser than redwood, so maybe that played a role in the bond or heat transfer.
John