CoachJM,
Here is the confusing part, as the MLBUM says (
my emphasis):
"NOTE: With runners on first and third, if a pitcher fakes a throw to third base and then throws the ball to first base, arm motion is not required in the fake to third, although a legal step is required. Also, in the fake to third base, the pitcher must break contact with the rubber
before throwing to first base. If the ball is thrown out of play in the throw to first, the pitcher would be considered an infielder for the purpose of the award."
JEA says: ". . .
in his feint to 3rd, he must break contact from the rubber with his pivot foot."
See, it is a little different. Which causes me to wonder which is technically correct.