We’re given an education in the Rotational "Wrist Conditions" at 4-C-0. HK identifies "Rotation" as “Hand Motion”.
4-C-0 clearly indicated that the Hand (Wrist) rotates, but in 2-G Hinge Motion, HK says that ““Roll” is actually imparted by the turning torso and/or the orbiting Arms per 2-K#4 and 2-K#5 as described in 10-18”.
Well, what is he talking about?
Do you Turn and Roll or Not???
Is Turning and Rolling done by the Torso and orbiting arms?
Is Homer mixing terms?
Quote:
ROTATIONAL
4-C-0 GENERAL The Rotational Wrist Conditions and Motions are VERTICAL (-1), TURNED (to the right) (-2) and ROLLED (to the left) (-3).
4-C-1 VERTICAL The Wrist is VERTICAL when the back of the Hand would lay flat against a swinging door mounted per the selected Hinge Action (2-G) with the Shoulder as the Hinge Line.
4-C-2 TURNED The Wrist is TURNED when the hand is rotated to the right. When TURNED, the right palm faces directly away form the selected Plane (7-5) and/or the left palm faces directly toward that Plane. Whether the Wrist is TURNING or ROLLING, it is always in a TURNED condition at any point between VERTICAL and TURNED.
4-C-3 ROLLED The Wrist is ROLLED when it is rotated to the left. This moves the Wrist back to the VERTICAL condition from the TURNED condition. The Wrist should never normally ROLL beyond the VERTICAL condition during the Release. But the Roll may be varied to suit the purpose at hand. It may begin early or late, behind or ahead of normal position, or even be left in the Turned position until after Impact. See 4-D-0.
Quote:
2-G HINGE MOTION
Thus, though some procedures may cause the Clubface to “Close” in relation to the Plane Line, none will be an actual “Roll” of the Hands. See 2-C and 6-B-3-0. There is, however, the “Release Roll” (Swivel) which is a true rotation of the Hands into Impact alignments by Accumulator #3 with (10-18-A only). After the selected Hinge Action has been executed, the Swivel is again useful for Snap Rolling the hands into their On Plane Condition for the Finish (8-12). That is the Geometry of Hinging.
The Physics of Hinging is, that, Hitting or Swinging, “Roll” is actually imparted by the turning torso and/or the orbiting Arms per 2-K#4 and 2-K#5 as described in 10-18. Practice these motions first with open Hands per Chapters 4 and 9. The point to be learned here is that the Club, because of the Flat Left Wrist, must always travel at the same RPM as the Arms and reproduce the Hinging inherent in the selected Lag Loading procedure (10-19) per 4-D, 9-2 and 9-3, regardless of Clubhead Extension velocity. See 2-P and 7-18.
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