I actually am in the process of doing this right now to my MIM jazz bass, it's actually being worked on by my bass guy right now. One thing to note about the Gotoh 201 (which is the bridge I bought) is that the saddles are larger than the stock MIM jazz bass bridge. At least they are for mine which I bought back in 1993, I'm not sure if the saddle thickness of the stock MIM bridges has changed since then.
This means that even with the saddles set as low as they go, the strings will sit higher than the lowest you can get with the stock MIM bridge. Depending on how high your action is this might not be a problem. The tech who is working on my bass mentioned that he would likely have to shim the neck to compensate for this. I told him to see what he can do, but if it's an issue to not even bother with the new bridge, I'd rather have the old bride with playable action than the new one with action that is too high.
I'm not sure how it will turn out and if he will be able to get the action the way I want it. I'll have to wait until Thursday (6/7) to find out how it turns out. I'll post the results here when I get the bass back but I figured I'd alert you to this issue. From what I've read (after buying the Gotoh 201) other people have complained about the saddle height as well. So I figured make you aware of this. Maybe someone else who has the Gotoh 201 can comment on this?
Ok, I figured I'd provide an update on the off chance that it may be informative to any one.
I dropped my bass off for a long needed setup, including new nut, fret dressing etc. I had a Gotoh 201 bridge that I'd figure I might as well put on while I was getting the work done. I figured the Gotoh saddles would be a bit more stable than the saddles on the stock MIM bridge and that it might enhance the tone a bit. I figured, a higher mass bridge would mean a deeper warmer tone.
Well, I picked up the bass last Thursday, played a gig with it on Friday, and pulled the Gotoh off and put the stock MIM bridge back on first thing Saturday morning. Let's just say it wasn't for me. Here's the issues I ran into.
1. The saddles are in fact larger on the Gotoh; the neck did require a shim, but the action was still higher than with the stock bridge. It wasn't drastic, but I could get it lower with the stock bridge so I decided to go back.
2. This surprised me the most. The Gotoh did change the tone of the bass the way I expected. It wasn't drastic, but it did make the bass a bit deeper and warmer. To my surprise, I didn't like it at all. I missed the tone I had become accustomed to. Yes, the Gotoh, was deeper and warmer, but once I heard it, I realized that's not what I wanted.
So, back to the standard MIM stock J bass bridge for me
