2 Part Technique - For your best chance at finishing with the North South Choke against an opponent who knows the basic defense, find a creative way to bypass his arms and hold him in Double Over Control from the North South Position. This may involve pummeling, using your knee to pin his arm, and other means -- just find a way to hug both of his arms down by his side. Once there, you'll have plenty of low-risk opportunities to attack his neck for the choke. If your first attempt at landing your ribs against his cheek doesn't work, simply back off and drop back on it quickly when your opponent isn't ready to re-defend.