[waltjp]

Work any and all spots. It helps if you can understand the responsibilities of the other officials working the field and there's no better way to acquire that knowledge than to work that position. You'll also see for yourself what position you feel most comfortable with.

You should also seek out and watch how other respected officials work their positions. Don't be afraid to ask questions and don't get defensive when you're offered some constructive criticism. Granted, some people are better at offering advice than others but most have their hearts in the right place.