Five Stars for ATK’s straightforward R01 adjustment plate, at a fairly minimal penalty for cost, weight, and heel>toe delta.
For details, see my review at Skimo's listing for the Hagan rebranded version.

For those who own multiple pairs of boots with different bsl's and want to be able to use any and all of them with a single pair of skis, the adjustment plates offer an easy, practical solution. The weight penalty for this convenience is barely worth noting, it's minimal.

My sole concern was whether the outer 'arms' might bend under torque and allow the nuts to slip while tightening the screws down. Nope. And I've tightened and loosened my bindings a bunch of times to adjust them for different sizes of boots.

Ok, I did also wonder whether I'd have any issues if I aired out a rock and landed on these things; they appear slightly diminutive. No problems there either, no warping, nothing. I've got 60+ days on them and they're still treating me right.

Only other thing to note is that it's somewhat difficult to get the screws into the nuts if you remove them fully. (the nuts remain beneath the runners until the binding is removed from the ski) During adjustments, loosen, but don't remove them..