One serious way to implement a Mastery Bridge on a Jazzmaster Guitar
 

Got drill press skills?

http://www.offsetguitars.com/forums/...55594&p=808447

The benefit is that no glue w/ wood dowel is used in the body to redrill the bridge post holes or larger drill out to use a larger post... thus all this work is reversible if the guitar is to be returned back to its original bridge.