Natural. Just poly. It's tinted to look 'vintage', so i don't know if the neck was stained first, but I suspect it's just a tinted poly.Interesting. notCardio.....is the neck you want to sand painted or natural?
800 grit sand paper - 0000 steel wool - see if alters it enough. You don't want to reshape the neck.Got one with thick poly that I want to sand the back of.
What should I START with?
I personally would go with 1000 to start and 2000 to finish