2 of the major shooting advantages of the 2 as pictured from the ECQC review: When you're entangled and/or getting tossed/beat around you know where your rounds are going. At this point, the point is to get some lead on target and start making the other guy leak out and hopefully create some space for you to either get away, or at least clear some distance so you can get better aimed shots on target. The other retention positions I've seen either put your body in a horrible position (speed rock) or have considerably fewer index points so you don't really know where your rounds are going. Keep in mind this is intended for an actively entangled shooting problem, not something that's going to look good on paper. The second advantage is that if you mis-judge the positioning you know the errant round is going into the ground, not sailing off somewhere. This is a major failing in every other retention position I've seen. The potential for firing a round off into an unknown space is greatly limited with Craig's 2 position. Physical references from the 2- Bunching in the shoulder (it should be uncomfortable) thumb flagged on pec, mag basepad on pec/ribs depending on your body structure, elbow tucked in & elevated to the limit of travel, wrist locked in neutral alignment. The vertical elbow shield is a relatively common noggin protection technique. I also hit the 2 on my reholsters as a way to keep it ingrained and slow down my reholster so I don't put the vasectomy in vasectomy carry.