I see your headstock is still in "paddle" form. It's generally SOP to cut/shape etc before applying any finish.

Also, I can't imagine doing a burst with tinted varnish with any kind of brush or hand applicator. Possibly a spraygun, but not by hand. I'm a base coat/top coat kind of guy. I've never tried a all-in-one approach.

And I have to say I'm jealous that you have a CNC, even if it is just a "hobby" one!!!