Most of the time, your opponent will recognize that they are in danger and will not allow you to overhook their arm in full guard and place their arm on your hip. This is where the position requires some nuance. Because of the angle you established earlier, it will be much easier to keep your opponent broken down as you control their shoulder, which can be done even though you don't have a traditional overhook. To set up the armbar, with your far arm, reach under your opponent's far leg and use it to enhance your angle. Maintain your control, passing your leg over your opponent's head, and hipping up to finish the armbar.