He looks like he is having a seizure with everything he does. But it works for him. Ever see the time he did his normal spastic thing and hit the ball three times for a 3 run single?
http://www.cbssports.com/mlb/eye-on-baseball/20646495/gif-hunter-pences-3-hits-in-1
FReegards
Pence has a weird back disorder that causes his spastic swing & throw. Apparently it doesn’t effect his game.
Apparently, he plays that way because he has a rare disorder (I’m sorry I don’t recall the name) that causes a part of the spine to be totally inflexible. He didn’t even know about it himself until recently.