LL is more stringent.
Quite a few years ago I was U1 of a state regional match up. The big stud pitcher from team A apparently pitched to one batter (it was actually only one pitch too!) more than the limitations allowed. Team B's coach called time and came out to question it. Both coaches brought out their documentation, I used a cell phone somebody had (back then that was a rarity!) and called the state tournament director. I shared what was on the documentation sheets. He told me that I was forced to issue an immediate forfeit, entering the score of 7-0. Game over!