Gibson Southern Jumbo

My good friend purchased this guitar a while back. When he bought it the bridge was lifting off the body, not a huge deal since the guitar is 30+ years old and it was an amazing deal. A guy at the place he bought it said he could fix it for $40 or $50 (I can't remember). Seems reasonable enough for a $2000+ guitar. Well, he had his way with it, needless to say the bridge lifted right back up.

I've done my fair share of guitar repairs and research, everywhere I read it seems you need to use animal glue for acoustics. Well, when the guitar was fixed the first time, it was done "properly" and animal glue was used and, well, it didn't work. Now, from a normal carpentry point of view I see, the body of the guitar is wood and the bridge is wood. So.... why not use wood glue? Well, I'm attempting my fix using Gorilla Glue brand wood glue. I squeezed it under the bridge and tilted the guitar (the glue is thin and runny) to get it all the way under. Clamped it with these two clamps (wrapping the ends in cloth to prevent damage) and as of now it's been sitting for 24 hours. I plan on letting it sit for another 24, maybe even longer. I'm fairly confident this will work. We'll have to wait until my friend gets back to try it out and see how it holds up.