Should base umpire ever be in Position B?

[tibear]

The problem I have on a steal of second isn't with the tag. The problem is, did the runner touch the bag before the tag is made. Many times the runner completely blocks my view of the bag. I'm not worried about the easy calls (out or safe) as those are obvious.....it's the close ones that I sometimes wonder if the player had a hand on the bag just before the tag is made.

Many of the throws are on the first base side of second meaning that I can only go so far towards the mound without getting hit by the throw which puts me even more behind the sliding runner and blocking the view of the bag.

From position C, even if the SS takes the throw, all I'm looking for some part of the front of the bag which is usually easy to see through the SS legs. From C, I can move as much as I want to my left to get that good angle on the bag and aren't restricted by the angle of the throw keeping me towards first and closing off the angle.