My unqualified opinion is that because of the bending, tele boots can
cause lots of pain if they don't fit correctly. Old, soft leather
boots would mold more to the foot, you could make it bend close to the
optimal spot for your foot, but plastic boots of course has a
completely fixed bend spot. Changing models might work, but it might
take a few runs to see if another boot is better.


Martin
--
"An ideal world is left as an exercise to the reader."
-Paul Graham, On Lisp