[bray]

Daryl,

In post 46 where do you get your definition of swivel?

Hinge Action is defined by the book as:
Holding the Flat Left Wrist Vertical to one of the basic planes will impart the same motion to the clubface.

Those motions are
closing-horizontal hinge
layingback-vertical hinge
or closing and layingback angled hinge

This is exacly what's happening in basic motion....the travel of the clubhead is the same when power accumulator 3 is zeroed out, but the hinge action can vary for the shot at hand.

Now you bring up the word swivel
First swivel is not in The 7th ed Golfing Machine Glossary
so we can go to 4-D-0 as reccommended by the index.
There swivel is defined as "actually rotate the left wrists" or later in the paragraph "actually rotate their wrists"

If we define swivel as a rotation of the wrists then all hinge actions have swivel even vertical hinge could be called a reverse roll or swivel.

Now if we look further into this passage it says that

Players must Swivel-actually rotate their wrists-to the parallel to the plane position for the finish after follow through.
We could then define a finish swivel as the rotations of the wrists into the parallel to the plane finish after the follow through.

This means there is swivel in all shots with hinge action, but there is not a finish swivel in a basic motion because follow through is the end of the stroke.

Also I would further state any shot with a flat left wrist has a hinge action.

Sorting Through the Duffer's Bible.

B-Ray