I have a MIM STD Jazz Bass. I see on Angela.com I can get the "vintage" look going by adding the covers for both the bridge and neck pup. What advice/opinions can you give me on this idea? And for those of you who have done it, how hard is it to put these dang things on a bass that doesn't have them. (I know it should only be a few screw holes, but I very well may screw it up).