I recently came across this video of a talk from last year's Northwest Snow And Avalanche Workshop. I don't often have the patience to watch something this long (about 25 minutes) all the way through, but I'm glad I did. The speaker, Jeff Campbell, is a lifelong skier doing PHD research on ski injuries and had some very interesting stuff to say on the topic of boot and binding compatibility. I think it's worth a watch for those who spend time in the backcountry on skis.