2002 Martin OOO-16SRGT :: headstock breaks.
The top of the bass side headstock [upper right in photo] was split and the bottom treble side [lower left in photo] cracked. I opened the cracks, applied hot hide glue and clamped them both. The lower crack extended into the barrel of the neck so I had to smooth the break’s transition. The lower repair left the neck feeling smooth to the touch and was not touched up cosmetically to save on costs.