This whole thing seems to be coming down to how you are perceived by your evaluator/assignor and/or coach.

Real simple, if officiating contributes to your income suffficently enough that you have to depend on it for a living, do what the man who is paying the bill wants. For the rest of the officials, Get the dang call Right.

Your evaluation would probably say the same thing. If you go for help, they will say that you were out of position and needed to get help. If you don't get help, and make the wrong call, they will say that you were out of position. So if the evaluation is going to be the same regardless, I would get the help and get the call right.

(Fed Ball)The pre-game conference helps to cure these evils. SO DOES VERBALLY COMMUNICATING WITH YOUR PARTNER DURING THE PLAY. My partner and I utilize the PU's rotation to cover third in several situations. There are still times however, when rotation is not possible. Example: R1, base hit. PU rotates to cover third. Alot of guys do this. Now consider the same situation except that the ball is hit down the right field line. As the PU, you must stay home and make the fair/foul call. Therefore, you can't rotate.
Talk before, during and after the game. It certainly beats dumping coacher because your communication skills are lacking.