Wow, after all these barefoot miles, I just discovered the goodness of landing on the outside half of the mid/forefoot and letting the foot roll inward. When I first started wearing the Correct Toes a few days ago I focussed on shemming the big toe out further, but then yesterday I shemmed the little toe outward...puting the little toe in the right position had an odd effect of making my footfall land more toward the outside of the foot instead of the centerline...dunno why it does that but its kool. Anyway, turns out that letting the foot roll from outside to inside on the landing absorbs a lot of shock or something. My knees are so bad that even running barefoot I need to warm up a good bit to not have knee pain when I run....but when I made that one small adjustment, and let the foot land toward the outside and role inward, there is no knee pain even without warmup. Fascinating.