variation in 3 umpire mechanics ???

[SWFLguy]

Last night I was 3b Ump on a district championship game.
In our pre-game the PU dicussed a recent article in a well
known officials magazine on a variation of mechanics.
Basically it is having the 3b Ump in the "C-slot" with bases
loaded or runners on 1st and 2nd. I gave it a try. As it worked
out, I had no situations where it made any difference. The idea
is I guess for better coverage on close double plays.
Any input ??