This is the first movement I teach in the system to the students at my gym, as well as at seminars. While the collar tie is not necessarily the best or strongest frame in the sit-up escape system (the strength of a frame is highly situational), you will probably use it most often because it transitions very easily from a defensive tool to an offense tool. The key to this initial series is blocking your opponent from obtaining crossface control over your head so that you can remain mobile. Once you get good at this, your life will be much easier anytime you find yourself on the bottom. If this seems complicated right now, do not panic. We will break down down this sequence piece by piece later.