“The Shoulder Pin” is a trapping system used from the guard to tie up and control your opponent. The 3 essential finger grips causes extreme discomfort to your opponent and the framing pressure creates angles and opportunities to set up submission finishes.
In this video learn how “The Shoulder Pin” is used to set up “The Neil Knot” submission. This choking submission threads under the chin of your opponent, when locked up leaves them open with no choice but to tap out.