Balk or Not

[joemoore]

If he puts his glove on his right hand, he can pitch left handed to the batter and so engage the rubber that way. Once he begins a batter as a left hander, he would be required to pitch to that batter left handed. 6-1-1 Note. FED. OBR has a similar ruling.

I would call the balk, if the pitcher protested, I would give him the option to pitch to the batter left-handed.