He's been using this for a while with a lot of success. he also uses it as a great way to get onto the back (Rader at ADCC for example)
ya man. i remember getting up at an insane hour to watch adcc 2011 and was in pure zombie mode but sat up and yelled "oh shit" when i watched him absolutely crush rader wither that.... and get to his back.... and choke him out in seconds.