In the last FWW , there is an interesting article on the strength of different clues. Pva glues did very well! Epoxy was as good and the wood actually failed rather than the glue. Hide glue was approx 80 % as strong... The worst was Gorilla glue or other polyurethanes at only 58 %. That is what I always thought....it is really no surprise ...and I hate the mess. See this older thread..
http://www.sawmillcreek.org/showthre...t=gorilla+glue