The Voile 3-pin Hardwire binding combines the 3-pin toe box with the spring-loaded adjustable heel assembly.
PROS
I like the added safety of the old-school 3 pin toe-box in case something happens to while I'm touring. I also like being able to take the spring off the rear of my boot, when I'm on a gradual skin track. I have boots for touring and resort skiing, so I can quickly adjust the binding to fit my boot. I could never do this very quickly with my old cable bindings. I like being able to adjust the tension in spring with a few turns of the cartridge.
CONS