Help: Roasted Neck "Touch Up"?

It’s darker then when new since it’s been played for some 6 years and you can see the original roast tone in the neck pocket, but it looks like there is a scratch in the neck, that is described as “not deep”, but you can clearly see the difference in color.

Can the back of the neck be sanded down to remove the defect and then just re-oiled and waxed or is there a better way to address it?

Thanks!

-ic-