Originally Posted by Homebrew01

Have you ever sprinted, or attacked (or chased an attack) on a climb ? I can feel my foot trying to pull out of my shoe from the upward force.

On longer sustained climbs, I can decide to utilize my hamstrings and pull through the bottom of the stroke. With some shoes with older delta cleats, if there was any play, you can feel the shoe slide back ..... I'm curious about these "studies" and how they were run.