Any time you get your arms clinched around the neck and one arm whether from or back or , you've got a truly formidable control that is also very close to several submissions. Look for it when ever you can – it's almost always from any neutral or dominant other than or open guards where the opponent can control . Once attained – you immediately become a true menace to your opponent and he have to get defensive immediately. It's a rather simple grip to apply (though controlling it for long periods of time against a skilled opponent isn't so easy) that costs you little in terms of risk and effort and yields great rewards – look for it every time you spar!