Check swing mechanic - Plate calls it - Different arm for different batters?

[Insane Blue]

Originally Posted by teebob21

All codes and mechanics welcome. This came up in a discussion this week: PU calls a strike on a check swing. If PU points, should he use his left arm always, or use the opposite arm as the batter's side? (Left arm for RHBs since they are on left side, etc.)

Here we are taught to point with hand away from the batter ie. Lefty with left hand Righty with right hand. We are also taught just to say swing and leave the verb she or he out.