Keep your head pressed into opponents heart. Any lower, you can get caught in D’arce Chokes.
When you are ready release the lockdown, do a leg curl with the leg that is still hooked with his so that you bend his leg towards your butt. This helps aid the sweep.
It is important to jump up in one motion if at all possible. Rest your weight on his upper back and then spring to your feet in one motion.
One of your knees/inner leg must rest up against your arm wrapped around his neck, while the other must land by his hip. Your leg that is over his head should be at a 90 degree angle to his body.
Fall to the side and put your leg closest to the hip over his back to stop the roll.
The neck crank and choke is a combination of pushing his head with leg on top of his head and pulling with your arms. Your leg should act like you are kick-starting a motorcycle.