I've had 2 pairs of these (on Cho Oyus and Voile Vector BCs) with every iteration of the warranty replacement heels. The heels never stopped autorotating on steep side hills; that is not only inconvenient, but dangerous. Packed snow and ice builds up under the boot heel worse than any other binding I've had (Vertical ST, Radical ST, Superlite 2.O, Plum Guide & Yaks, and Kingpins). It was so bad I finall covered the bsl adjustment screw & track and plate screws with permanent silicone adhesive; that did help a lot; using Maxiglide, Armorall, silicone spray, waterprood grease, silicone paste, etc. did little. I disliked the flipping climbing aids--they always seemed to flip inconviently on their own. For a minimalist binding these are heavier than most of the competition. But they did work and worked fine when the snow wasn't deep or in a sintering mood.
Hi Andrew, thanks for the feedback. For what it's worth, in our experience the rotation issues were licked with the version that introduced the little nubbin that gets mounted under/off to the side of the heel. It would be hard to rotate accidentally over that!
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