Everything except head stomps. This also gives strikers more to work with especially for those pesky wrestlers or BJJ artists who constantly go in for the takedowns without worrying about anything. Or think Frank Mir vs Nog II.
Too bad it was against Huerta though.
Marcus Aurelius: Tell me again, Maximus, why are we here?
Maximus: For the glory of the Empire, sire.
Baked, not fried... the healthy choice.