The thinking at the time was that to shoot instinctively the weapon must be supported at two contact points, namely the shoulder and the cheek, plus be supported by both hands. In the late 1960s and early '70s, with the help of the late and eminent Dr. Bruce Wolff, O.D., I began studying the notion that the contact points could be just finger placement on the weapons stocks. However, when form fitting and hand filling custom grips were installed the results were very much in line with the hypothesis. Skeet and trap shooters have know since the beginning of the sport that a proper fitting stock is paramount to shot placement. Therefore, and in order to develop a natural pointing handgun, the stocks must also fit the shooter.
Vision is the reciprocal action between the eyes and the brain.
Humans are born with sight, but vision is learned. We are also born with the ability to shoot instinctively, but to be able to HIT the target, instinctively, under combat conditions is a learned skill. The relationship of the eye to the hand can not be over emphasized. Therefore, vision and proper hand placement on the stocks are tantamount to successful instinct shooting. Life and death conditions during a firefight are determined not only by split second action but by attention spans as well.