"Frame"/Bone structure size (controlled for height) correlation with injury frequency/severity, or other performance indicators (speed, strength, endurance, flexibility, etc)
fast metabolism correlation with fast twitchiness/speed ( I believe CT said he believes there is a correlation, not sure)
sensory deprivation and muscle activation (eg closing eyes makes you balance more with your muscles supposedly)
sensory confusion and muscle activation - eg making it look to their eyes like they are imbalanced/moving, or otherwise disorient them.
deadlifting with mixed grip - causes imbalance/twisting of body, injuries?
hook grip - better? kills nerves in thumbs? permanently or temporary?
differences in hand/finger muscle strength requirements with the two grips and regular overhand grip? their carryover to other sports/activities requiring hand strength? Which is "best"?
Yes I could've used complete sentences, and I didnt read your post very carefully so I might be totally off.