High, I want to finish a maple top SG bass with the same vintage type finish as on PRS guitars.
http://www.starrsguitars.com/new_products/prs-se-sc250-satin-fm.jpg
Does anyone have any ideas how to achieve such a subtle, color-neutral burst?

Anything helps. :help:

The same way you do any other burst, you just start with a light color, and spray light coats to the "burst" area until you achieve the darkness you desire.