I dont use feel with that either...i just connect the dots, with either a 1/2 tip of outside, no english or 1/2 tip of inside for everything. Although that works really well.... it's nothing compared to this information.
For the other guy asking about the pivot. For the center-center system, you can either just use back-hand english to pivot your tip 1/2 tip from center, or you can body-pivot by moving your hip (the way i showed in the video).
The air-pivot is more complicated. Just pivot the same way for that as I demoed in the first segment for ease of use. Eventually, you develop an air pivot after manually pivoting a million times. The motion is the same, really. I just like sliding in with an air pivot so my aim/sight/stick line are the same.