Trackman inventor Tuxen is explaining what his putting system radar will do for putting, here:
Interesting ball bounce, skid and roll results and observations.
Your comments, Geoff .... thanks.
The YouTube showed that the people using the Trackman to "learn" about putting are starting out from a pretty usual hole of ignorance. For example, they don't understand basic skid-roll physics or what impact dynamics cause hopping and skipping starts, and don't understand feedback and teaching skills. That's typical for people making "technology" for teaching a skill without knowing the skill or how to teach.
One of the more noticeable points of confusion was the discussion of how balls veer off line once they slow down at the end -- this was observed on a studio putting surface that was "perfectly flat" like marble. Of course any DIMPLED ball on such a surface will wander about as the dimples roll irregularly over the marble flatness. This doesn't happen on REAL greens, where the ball is always cradled to some extent by the height of the grass, eliminating this dimple business. Even so, the Trackman folks appear to think the balls' veering off line on the marble indicates an off-center mass inside the ball. That's just nonsense. If the ball is off-center, the effect shows up even on grass greens, at least greens not as flat as marble.