[O.B.Left]

Using the idea of the last three fingers in the left hand coming down into the ball, I've had the longest and highest iron shots using this method than any other I've ever tried, and the motion is almost effortless.

This sounds like Drag Loading to me. 10-19-C. Which I sense in the last three fingers of my left hand. The Pivot (not the left arm for full shots) pulling or dragging the Left Hand which is turned to the Inclined Plane down the same.

Johnny research "Startdown Waggles" by hitting the search function or check out the premium Address Video on this site. Its is the drill of drills for Drag Loading in Startdown.

You will can learn to alter your trajectory by changing your Release Point. The point at which your Left Hand Rolls off the Inclined Plane. Yup it isnt just the uncocking of the left wrist cock that distinguishes the commencement of the Release.

Check out the Release Triggers, the "Left Wrist Throw" , Automatic vs Non .... 12-2-0 Swingers pattern etc etc. See Hogans demonstration after the Shells Wonderful World of Golf Match where he describes the startdown as a "movement of the lower body".

Slide? Hell ya, with a Delayed Turn of the Hips just like Hogan. It'll "Tilt the Axis" to lower the Right Shoulder. You'll see how "saving" lots of bent right elbow for the ball (late release) is only possible if the Right Shoulder takes the bent right elbow way down plane in Startdown. Homer said we'd all feel like we were hitting the ball with our Right Shoulders. Watch Hogans shoulder, watch his slide or bump. Imagine the sensation of the dragging he must be applying to those last three fingers.

Is that what you are referring to pattern wise?