johnnyg08 wroteSome hybrid stances will have the pitcher (typically a RHP) cheating from the set position with his front foot more at the "45" than in front of the rubber.
The problem with this statement is not your use of the term 'set', but rather your suggestion that the stance you describe is somehow illegal and so cheating. It is a legal version of the set to stand diagonally.
The "hybrid" stance is in one sense a misnomer, since every stance is either the set or the windup. The problem with the "hybrid" is that the position of the feet determine it as a version of the set, but the pitcher's motion is a windup.
Permitting that confers a distinct advantage on F1, especially under FED rules where he cannot legally step and throw to a base from the windup position. The "hybrid" stance is a set, but if he's allowed to wind up he gets a better pitch out of it.
If I see F1 doing this, I try to nip it in the bud in the first inning (or first inning of relief). My state wants this addressed, but I understand that others follow MLB in not caring. It's really only an advantage where F1 would be pitching from the windup with runners on base, for instance R3 only.
