Here is my two cents. A digital altimeter is a quick reference to re-affirm what your eyes perceive (sight picture). I am a great fan of chest mounted digital altimeters! While looking at the ground you have your altimeter in your field of vision. We have all began the sight picture journey, learning how our canopy’s perform under various conditions. Many of us have had close calls (or worse). I believe a digital reference is a safe way to quickly re-affirm what your eyes are telling you and possibility avoid injuries. I noticed in the video the canopy pilot was looking up at his altimeter just prior to his point of maneuver. In those precious few seconds of looking at his altimeter his altitude changed, he is now lower and being relatively new to swooping might not recognize how to fix his problem(abort, speed up rotation, etc…) Please see attached!