I wish Fender had used / would use, that Strat bridge and string through tremolo system on the Jaguar and Jazzmaster where the upside down body concept came from...the stock ones leave a lot to be desired IMHO.
When I was just out of the Navy and pretty much broke, a guy gave me the pieces of a Jazzmaster. Fortunately it was most of the pieces, and a fellow I knew in Hannibal Mo found a brass aftermarket bridge. which it needed, that had been sitting on the shelf in a local music store for a very long time. It even had a brown Fender hardshell case. A different friend had a local tech put it together for me. There were only two original features of the guitar I liked; the neck pickup and the trem. I guess that bridge made a difference in keeping it tune, which I understand was a problem with the original trem/bridge set up. The trem didn't have a lot of range up or down, certainly not as much as a strat trem, but it had enough for what I was doing, and after I figured it out, I was able to use it effectively for what I wanted. It ended up being one of my favorite trems to work with.