I am building my #1 guitar. I am in the southern California desert with a very low humidity.
My guitar has developed a crack about 1/2 inch from the fretboard between the edge of the upper bout and the rosette. It is very tight, but can be manipulated up and down a small amount. I did a dumb thing early in the building process and caused the crack. I glued it back together with PVA glue and sanded it out fine. But I have had to keep it outside of the humidified box that I keep it in while I had clamps on it.
How do I clean the glue out of this tight crack?
What do I use to re-glue the crack?
Any other advice?