To understand the dynamics of trigger pull we must first study the movement of the finger as it bends. The finger itself is composed of 3 consecutive bones (Phalanges), attached with the third knuckle to the metacarpal bone within the hand. Each knuckle in the finger will allow the bone above it (closer to the tip of the finger) to rotate, however they are accustomed to acting together and bending as one. Once one starts taking a close look at what happens when the knuckles bend (Fig 9) it becomes quickly apparent that the pad (fingerprint) subscribes a complex arc which has lateral as well as back and forward components. These lateral forces will put undesired side force on the trigger and push the pistol off target when the trigger is pulled so the ultimate goal is to isolate and remove all but the rear pull from the finger movement. Looking closely at (Fig 9) one can see that the leftward slide of the 2nd knuckle (Rotating on the 3rd knuckle in the hand) adds the greatest extent of the lateral divergence, so it is on the positioning of this 2nd knuckle that we shall pay the most attention. Furthermore, we require a solution which will reduce any unwanted forces from moving the 1st knuckle as well.