The wildsnow testing doesn't tell the whole picture. The heel also matters. Some heel designs develop play over time, and offer little resistance to the first few millimeters of rotation. Also some...

3 dimes stacked = 4mm and they will rest on the toe pins.

The issue was with 10 year old La Sportiva branded toes. No recall. Just a lot of warranties and sellers (MEC if I recall correctly) opting not to order more. It's comparable to the early Plum toe...

If you have partners with dynafits you might want a torx bit (don't remember the size) and any bits you might use on boots (hex frequently).

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That wouldn't concern me at all. What is common with some boot-binding combos is that the sole puts pressure on the toe wings when they are closed (which could affect release characteristics) or rubs...

Trimming AT boot soles to improve binding compatibility is frequently necessary, especially to avoid interference with toe wings on tech bindings, but also when an AFD is involved and you want a...

Maybe modify the boot sole? Take a couple mm off with a razor blade.

Has anyone done a release test (Vermont calibrator?) with and without freeride spacers?

I'm good with a delta of about 10mm or less. And if I'm skiing powder I don't care much at all. But on hard snow with too much ramp it feels like the ski's sweet spot is shrunk down to nothing.

I...

La Sportiva did it first about 10 years ago, but the toe wings kept breaking so they stopped.