[O.B.Left]

Correct . . . The release sequence is predicated on the left arm otherwise nothing happens.

So no matter what your procedure the sequence is

1. #4 Left arm moving down the chest
2. #1 The right arm unbending
3. #2 The left wrist uncocking
4. #3 The angle between the left arm and shaft is rolled through the ball

Bucket, Is #3 rolled THROUGH the ball or does it roll TO just shy of the ball at which time hinge action takes over and takes the club face and the left hand to perpendicular. I am also wondering whether the "Roll" of "Delivery Line Roll Prep" is #3 or a hinge action or both.

Sorry for taking this thread further away from #4.