[Matt]

"Aft" is more behind the shaft than on top of it. If I correctly understand where you say you have your thumb (and I think I do) then it definitely needs to be moved over further to your right. Almost try to get the base of the thumb further to the right than the tip is - right now you have those reversed. My thumb lies on the grip parallel to the shaft, and with the tip of the thumb touching about 12:30 on the clock. The 'V' formed by the base of the thumb and left forefinger points just inside my right shoulder.

The whole idea is to get your Pressure Points on the aft side of the shaft. Your left thumb is where PP1 will be exerting it's pressure. The last three fingers of your left hand (PP2) will sit with their fingertips on the aft side of the club. Your right forefinger (PP3) will sit on the aft side of the shaft.

They're all supposed to line up there so you can exert all your lag pressure behind the shaft to drive it into impact if you're Hitting, or to aim your thrust if you're Swinging.