Secret sauce

1. Why is the right hand thumb and forefinger pincer grip important in putting and chipping?  It is because it gives me the feeling of being able to aim the putter (or club) to the target.  The feeling is becomes like I am using of "off-set" putter or club and I feel like I am dragging the "head" of the club.  This feeling makes it easier to see the line - actively - meaning from putter to the target and not the other way around (target to putter head)
2. Why is it a must to keep the head behind the ball at the moment of impact?  The reason is it forces me to move the waist first before the turning of the shoulders to hit the ball... which is the correct golf swing.
3. Why is the club shaft at address suppose to be perpendicular to the ball direction and not parallel to the arm?  Because the club is pulled up with the right hand (or middle finger) first which automatically puts the shaft parallel to the arm at the point where the arm takes over carrying the club to the top.  It just makes the transition from the ball to the top automatic - a common problem solved by this method.
4. Why is the shoulders have to be twisted as much as possible?  One will notice that the twisting of the body has a direct effect to the divot.  It forces the lower body to move the head a tad to the left and delays the hit.