Hi Larry,
What purpose could it possibly serve...
other than irritation if not placed perfectly in alignment with the elbow hinge...
& even then what purpose could it serve?
Why don't all pool players just have their arm amputated & replaced with a robotic arm?
If man, any man, thinks that they can design & build a better arm/hand, then they are delusional.
How about instead of that device, someone design one that locks the elbow, wrist, & hand/fingers & the whole mechanism 'pivots' at the shoulder.
That way... once the set up is 'perfect'... nothing can go wrong...
unless the shoulder pivot point moves... as it might naturally WANT to do.
We are human beings & it's just natural to want to move when DOING something...
like moving a straight stick...straight.
Sorry, Larry.
I think I am just venting based on another post in another thread & yours here just sort of coincides with it.
Best 2 Ya & Shoot Well,
Rick
PS Greg Norman came out with a wrist 'device' that 'locked' that right wrist into a cupped position. That basically forced the player to lead with the grip end of the club to hit the ball & kept them from releasing before the hit & scooping the ball. It was a very good aid to practice with as it immediately associated a visual difference in ball flight with a difference in bio-mechanical movements. I'm NOT against all 'aids', but they should serve a suitable purpose. I don't see a suitable purpose with this device, unless I missed something.