The insole has an embedded sensor system that provides data on your individual left and right foot impact rates, foot-strike patterns, total foot contact times, as well as your cadence. I'd be interested in seeing the differences in each foot when running with vs. against traffic on the road (effects of road camber), as well as the effects of running on different surfaces, at different speeds, plus the effects of drills, strength training, orthotics, etc., changes when coming back from an injury or while running on an injury. Also, even the changes that may occur simply due to the shoe wearing down.