Started the repair tonight -- attacking the separation between the brace and top first. I wedged a toothpick in there to open it up as much as I could, then used a glue syringe to put a good bead of glue along the seam. I then took a couple more toothpicks and tried to "stuff" the glue underneath the brace as much as I could. I held the guitar upside down for a couple minutes to let the glue seep under the brace, then clamped it with the craft sticks I'd already trimmed to length. The guitar is now resting propped up with the soundhole side down, and the neck angled down, to keep the glue along that seam.
I'm still worried I didn't get enough glue underneath the brace -- you can't see what you're doing while you're doing it, and I couldn't get the separation open very far. I guess if it opens up again after I remove the clamps, I'll just try again.
Any recommendations on how long I should wait before unclamping and starting the repair on the crack in the brace? Is 24 hours sufficient?
