^^^^ I use pretty much the same system as HDude, except I use a Cyanoacrylate (Krazy, Super) glue as I have found any type of filler, epoxy or expanding glue will leave a visible line.Very Simple repair ,,,,,,,,, slightly open crack with small tool & degrease ( brake fluid works). When good & dry
put in carpenter's glue . Wrap tight with surgical tubeing ( or whatever you have). A day latter remove & clean
up glue that came out of crack.
Long walker has the correct fix
As for glue not the best glue expands especially Corolla glue
Expoy works best because expoxy sticks to each other you need very little
The best glue to buy a bit tricky to find but by far the best and that is glue that is used to make acoustic guitars here’s why it’s viscosity is that of water so it will flow everywhere it becomes active when air contacts it there is nothing better it works on 200$ guitars and 20,000$ guitars



























