Sorry if this has been covered elsewhere, and yes I searched, it's surprising how many hits you get when you search for "Gotoh 201." Anyhow I am considering replacing (I didn't say "upgrade" I don't want to restart that debate) the stock bridge on my MIM Fender Jazz with the Gotoh 201. http://www.warmoth.com/Gotoh-201-4-String-Bass-Bridge-Chrome-P138C718.aspx My question is, is this a drop in replacement? ie: screw holes, string spacing stuff like that. I want something that I can install fairly easily, and possibly uninstall and put the original back, without to much trouble and or damage to my bass. Second question: how hard is it to do a neck shim, if necessary?