The Gorilla glue that foams up is about worthless for bow making. Some time back someone posted a link to a very good test of various glues on wood...the Gorilla Glue (claims on the bottle say it is the strongest glue in the world...no idea who's world, but certainly not ours) came in dead last! Elmer's school paste is better. In fact, I think the guys that invented Gorilla Glue ate too much school paste as kids.
But back to the point of this thread, Titebond Poly. This is Titebond's version of Gorilla Glue. It has it's uses, but in bowmaking, it just can't take the strain. Their Titebond I, II, and III are all vastly superior products for our applications.