The B&D Ski Gear binding toe shim is designed to stack nearly any tech binding toe (with favor to Dynafit Radical or Vertical ST for best fit) up 1/4 inch. With average boot sole lengths, result is about 3 degrees less ramp. That still leaves some angle, but is a noticeable change.
I’m not going into detail about why you’d change your ramp angle. Those of you who need to do so usually know it. Suffice it to say that for some styles of skiing, and some folk’s knees, being jacked forward on your tiptoes is not necessary.
That said, ramp angle in ski touring bindings isn’t all bad. Some folks like to have gobs of it, and it provides a sort of “automatic” way of changing your boot angle depending on if you’re in ski mode or walk mode — without having to build the ramp angle into the boot. In other words, the boot can walk uphill nicely while you’re on or off your skis, you then receive enough ramp angle from the binding to perform on the down.
The units are in two pieces (see B&D website), in total they weigh 1.7 ounces (48 gr) each. They can be mounted in many situations without the extra smaller piece. With the smaller piece eliminated the weight is 1.3 ounces (36 gr).