I absolutley love the Jaco signature fender, the way it's sides are all de-painted. I was thinking about dragging my bass around some concrete to get that look, think I should do it? It's some MIM J, I love the bass with all my heart but I don't like it's black with white pickguard look at all. I've been thinking about getting a mint/black/mint pickguard or repainting it off white. Is there an easier way to make your bass look groaty?