Repair Tech Quick-Tip: If you're not using IC-2000 to crack / gap-fill you owe it to yourself to at least pick up a bottle to try. It's 'cheap' AND 'good'...for what I'm using it for anyways.
I've not actually tested it for shearing strength or its adhesive properties (it's probably good for sticking things together too) but I can tell you it works a treat for filling surface cracks and chips in grenadilla wood bodies. Even better...it's full of powdered rubber and carbon dust so it's black!
The last two shots have the shadows super blown out so you can see how well the glue finished up a hairline crack.
The 2nd to last photo is after 1 application and the very last photo is 2 applications and a touch more sanding / blending. The crack is basically gone...no camera or lighting tricks. Bonus Nachos: I didn't spend any more than 15 minutes on this repair.
Good stuff -- and much thanks to fellow tech and friend, Juan Caino for turning me on to this great glue. I will never NOT have a bottle of this in my inventory.