My Take:
Here is what I have gotten out of this entire discussion:
1. Releases are individual to players. If Sergio tried to release like Watson or vice versa, we would never have heard of either. If either tried to look like the other, would also never have heard of either.
2. A full free release allows the club to pass thru the line up. The line up is only a moment in time and any attempt to hold the club in line with the lead arm will not allow the club to reach maximum speed. There should be no attempt to make the lead wrist do “anything” (either stay flat or bend) – the lead wrist should just react to the momentum of the club – which in most cases will be a combination of some bending and some roll as the club passes thru the in line moment.
3. The point where the club contacts the ball can be before, at, or after the club passes thru “in line”. That point would influence both trajectory and direction – “the D Plane”
4. Good players (Tour Pros, etc) all have some forward lean (at least with normal iron shots) but forward lean is always decreasing as the club approaches “in line”, so the amount of forward lean would be greater 1” before impact than it is at impact. Any attempt to maintain a “constant” amount of forward lean is “handle dragging” and detrimental to maximum speed. If you want more forward lean at impact, have impact occur “earlier” in the swing – making the appropriate D Plane adjustments.
5. In a free release, there is no attempt to square the club. Once the club shaft reaches “last parallel” in the downswing, the face is “squaring” at a constant rate. It should always be “square” to the club path at any given point during the last 90 degrees prior to impact. There should be no attempt to “twist” the club about the shaft to square it. Relaxed hands, wrists, arms are key here.
6. The pivot starts the downswing – weight returns to centered – then the pivot slows as the club builds momentum, the pivot stops for a moment in time as the club passes thru “in line” and then the body and weight are pulled into the finish by the momentum of the club.
7. There should be no “FATS” after the shaft reaches “last parallel” in the downswing. The harder or faster the lead shoulder / lead arm can pull upwards (the “jump”) as the club approaches in line, the faster the club can move. The clubhead is still moving down – the “jump” is pulling the hands upward and inward.
8. The coupling point is moving faster earlier in the downswing that it is as it approaches in line. At in line, the coupling point is still (note the butt of the club would be moving slightly backwards at this moment) and then the coupling point is pulled into the finish. Any attempt to move the coupling point (or worse the butt end) past in line is “handle dragging” – it must be pulled by the momentum of the club.
Well this was longer that I thought it would be. Bruce