Originally Posted by dominikk1985
if you want you can do the unit turn in the 2HBH grip there is really no disadvantage.
however the throat grip will give you a bit more spacing between the arms and thus allow for easier running and a more relaxed hitting. they are probably doing it for conveniance issues.
I believe it actually has been proven bio mechanically to assist in shoulder rotation. At least that is what I was told by professor Bruce Elliott. Luke Seville made this change while still in juniors.