When I made the Librarian Shoes for V4, I dealt with the foot bending problem by simply rotating the foot parts (foot and toe) in Hexagon. Yes, there'll be breaks in the mesh, but it's approximated good enough to model around :) At least IMO :)

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.