2 Part Technique - Go with your opponent's attempt to roll out of your Seatbelt Control from Turtle; but if he's quick and happens to catch your leg with his, maintain tight control with the seatbelt to remain fixed onto his back and stomp your leg free from his guard. You cannot simply pull your leg out, because a slow tug will telegraph him to hold even tighter. That's why a quick forceful kick is what is necessary to surprise him and give you a chance to ease out with minimal resistance. Once freed, sit him up and set in your over-side hook. If he tries to block your hook from coming in, even better; trap his arm along with setting the hook for an even easier Rear Naked Choke finish.