[rj]

I recently worked a woman's fast-pitch softball game with two very veteran umpires and got two very different mechanics. Who's right?
As the Base Umpire in a two-man system with runners on 2nd & 3rd, I'm in position 'D'. I was told that if there's a throw from the catcher to the 3rd baseman in an attempt to pick-off R1; (1) I should take a few steps in toward the infield to get the 90 degree angle to the base; or (2) I should move parallel to the base path to get as close to the left field line as possible to see the throw coming up the line.
Who's right?