3-Umpire Mechanic Situation

[Dholloway1962]

The other 2-umpire situation brought up a situation that happened to me over the weekend and wanted input on proper mechanic.

3-umpires, bases loaded, and two out. Batter hits a fly ball down left field near foul line that drops fair. 3BU chases. Now, hopefully I get runners labeled correctly and avoid being chastised....R1 scores easily, R2 touches 3rd heads home as R1 heads towards 3B. Going to be a play at 3B, which is the PU (me) call. As I see this developing I realize I'm going to have a pretty close time play at the plate. Now I'm thinking where do I get into position to watch the tag play at 3B and watch when the runner touches the plate. I wound up closer to HP and was able to watch the runner touch before the tag. The play at 3B wasn't close and was safe so timing play didn't come into play.

I felt I was waaaaaaay too far away to make a sell call if the play at 3B had been a close play.

What would be the best way to position yourself? If you devote your full attention to the tag you are going to guess on if the run scored first.

Thanks for input.