[jumpmaster]

In my association, we use a couple of signals for those bangers at first. As PU moves up first and gets set, he is watching for a pulled foot, BU moves into position and sets, waiting on the "snap. . .thud". If the PU has a pulled foot, he will place his hand flat against his belly, if he has an out he will place his fist against his belly. As a BU, if you can see it great, you have an extra set of eyes on the play, if you can't. . .well, that's what you get paid for. It's not foolproof, nor relevant in every situation, but it has helped me out this year and it helps with communication, teamwork and hustle by the umpire team.