Salomon’s Guardian backcountry skiing (and resort) binding looks good. Check out this binding’s guts along with a few specs.
Specs, verified here at WildSnow HQ with bindings on demo boards: Size “N” (large?) Guardian, binding weight of 1480 grams (52.3 ounces) per binding with all hardware. Stack height (boot above ski at heel) is 27 at the toe and 32 at heel (verified at WildSnow HQ on demo board). Compare to main competitor at 37 an +-37 (latter due to sliding AFD on competition). Thus, you get around 5 mm less stack with the Salomon, but you do get some binding delta (drop at the toe) while the competition has a virtually neutral delta.