Originally Posted by Mathew

The uncocking and roll preparation is an extremely important concept as you make your strike (ie karate chop for swinging) towards the plane line and your aiming point. When you make the initial startdown this better be right or your going to be letting the clubhead control you but this concept gives you the ability to control it.

The uncocking and rolling happens on the plane line, this is the way the clubhead overtakes you around a flat left wrist. The rate of this overtaking is called rhythm and we can align our left wrist vertical to a plane to give a control this overtaking which is called hinge action.

Your at the top of the backstroke - you visualise the plane line - you prepare to make your strike at a point on that line. You must be in a position to make that strike

If your swinging I would recommend hitting a few thousand balls left handed, because it is the only way your going to test and know that your left arm action is good or not. From the top, drag the club along the plane line until your in a position to strike with a bottom fist strike (commonly called Hammerfist or the japanese term - Tettsui Uchi and note that with this strike - the wrist remains cocked) directly towards the aiming point on the plane line. When your thrust is a straight line and your arm still moves in a circularish motion - when your line of thrust intersects this circle, the clubhead will start to overtake the left arm. You allow to uncock and roll back to a level and vertical condition relative to the ground whilst the back of the left hand strikes the the hinge action plane. Then impact has occured and your in an approximate followthrough position - allow your wrist to turn directly towards the plane to swivel into the finish - like you were preparing to make the bottom fist strike in the opposite direction - just like you should be doing on the backstroke to prepare for the downstroke....Once you do this - you could practice incorporating the right hand with a double overlapping grip as a practice aid....

Originally Posted by strav

Great post Mathew!
I've looked up Tettsui Uchi and it appears to be concerned with the red dot section on the left hand. How does this red dot relate to the flat inclined plane?
Using the compass/dial, when does it make contact? When does it cease contact?

Originally Posted by strav

Great post Mathew!
I've looked up Tettsui Uchi and it appears to be concerned with the red dot section on the left hand. How does this red dot relate to the flat inclined plane?
Using the compass/dial, when does it make contact? When does it cease contact?

Originally Posted by EdZ

Perhaps the single greatest image from Hogan's 5 Lessons (page 102), indeed one of the most important concepts in all his teaching IMO.

Originally Posted by hg

Impact is Station 7 and low point Station 6?

Originally Posted by EdZ

Depending on - impact fix alignments/grip type/axis tilt/ball position/desired result - impact at station 7 would provide more clubHEAD margin for error and more support for impact, especially for iron play. In short, how you position a machine using a particular pattern for a given result vs the total motion of that machine.

Originally Posted by hg

Impact is Station 7 and low point Station 6?