We each have our bias on this mechanic. I'll state mine out front. I prefer the PU, in this situation (we are talking about a bases empty triple, right?) to cover third.
This is the recommended FED mechanic and it is my association/s mechanic.
Why?
1. When BU knows PU is taking third he can set up differently and better for a potential play coming into second.
2. If the runner continues, we now have umpires in front of and behind him. No matter where the play goes, it will come TOWARDS an umpire, not away from an umpire.
3. As soon as the runner passes the shortstop the BU moves towards home and, if the play continues, will be at home waiting for the runner. Again we have umpires in front of and behind the runner.
Pete suggests that BU running a "hypotenuse" will always be in front of the runner. I don't believe that to be the case. It depends on what one considers "in front of", I guess. Most often when I have seen the mechanic performed Pete's way, the BU is, at best, at a 45 degree angle from the play, putting him slightly behind a sliding runner and not being able to see the hands touch the base. He has left himself open to the real possibility of the third base coach having a better view of the play.
PU taking third can easily set up in a true 90 to the play and have the best view of the hands, touch and tag in the entire stadium
Ball gets by? PU steps to the left and takes the ball knowing that BU is waiting at home.
Benefits of this mechanic? Better views of plays, umpires in front and behind of plays, and umpires in postion before plays are made = Better calls.
Benefits of BU running to third? Well-rested Plate ump.
GarthB
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GB
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