Additional question here:
If the holder does not go down on a knee, but places the ball down and it is kicked for a field goal or a try, there are no snapper protections as this is not a scrimmage kick formation. There also are no numbering exceptions allowed in this situation.
What advantage(s), if any, are there for a holder to not be on a knee when the ball is kicked?
Second question, if the holder (who is not on a knee) gets contacted, does he get the same protections as a holder who is on his knee when the ball is kicked? Or does he suffer the same fate as the snapper and can be contacted (within reason)?