Are base runners always protected on a illegal pitch?

[youngump]

Originally Posted by robbie

My experience is NSA only, but a assume this would apply universally??

#1 Just semantics, but not LBR violation. Simply leaving early violation.

#3 Coach MAY or MAY NOT have an option. "If the illegal pitch is hit and all runners including the batter-runner , advance one base, the play stands."
* This could lead to a situation where, for example, the D could get a double play and the O would have to live with it. - Is this different in other rule sets?

#3 yes, in NFHS if the batter becomes a batter runner, then they always have an option.

#1, I don't think it's only semantics. A couple months ago we had a discussion where it was pointed out that to violate the leaving early rule one just has to break contact but to violate the LBR one has to actually leave the base. Making it for example legal to lose contact while cleaning one's cleats.