As I described in my post on the Jazzmaster, the original Jazzmaster bridge is 
problematic in a number of ways: often buzzing and failing to retain the strings seated in their saddles when any heavy string bending ensues. I have been reading about the Mastery Bridge —an aftermarket replacement bridge that claims to solve these problems—for a couple of years.
Source Audio epitomizes the kind of forward thinking encouraged at Guitar Moderne. From the company’s inception it has eschewed the kind of “vintage is better” thinking pervading much (but thankfully not all) of the effect pedal industry. Vintage is great, but Source Audio has taken the challenge to push the world of guitar performance into the future. Their centerpiece product—Hot Hand—is a ring that remotely controls their line of guitar and bass effects, as well as any other effect with a continuous control input. Now, through Hot Hand USB it can also control plug-in and DAW parameters on your computer.
I admit to having been seduced by the current Jazzmaster craze. I have always liked the look of the body, with its asymmetric design offering an implication of motion. Too, as a modern guitarist, I liked being able to play behind the bridge.
Terrific, extensive demo by Nels Cline of the gear he uses with Wilco on Premier Guitar’s site. More info about his Schroeder amp at the Shroeder Audio site.