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  POSITION PLAY
  77
  the ball at all. In that case, the play will
  be very much assisted if the centre can
  hand the ball to the quarter. A man
  standing as he must to make the snap is
  an easy mark for the opposing centre.
  After having decided which way he is
  going to snap the ball, the centre should
  take his position ready for the signal,
  muscles all set, and should let the ball go
  back as quickly as possible. Just the mo¬
  ment when to put the ball into play re¬
  quires the exercise of some judgment. It
  may be better for him to wait if the line
  is unsteady and men are off side. He
  should not snap the ball when an oppos¬
  ing player is off side unless his captain
  instructs him to do so. The trick is often
  done, but is of doubtful advantage, because
  the umpire may not see the off side—the
  incipient play is stopped, and another
  down, perhaps the fourth for your side,
  or a fumble may give the ball to the other
  side.