[Yoda]

Yoda often employs a 10-2-D grip when hitting.

Component #2 -- Grip Type -- principally differentiates (1) the relationship of each Hand to the Inclined Plane; (2) the location of the #3 Pressure Point (first joint of the RH index finger); and (3) the number of Wrist Actions (Perpendicular or Horizontal or both) induced during the Stroke in either or both Hands.

The Strong Double Action Grip (10-2-D) mandates a Turned Left Hand and a Vertical Right Hand; a Pressure Point that is directly 'aft' (or 'behind') the Shaft, i.e., neither 'on top' or 'under' it; and a Double Action, i.e., Cocking the Turned Left Wrist (a Perpendicular Motion) causes the Vertical Right Wrist to Bend (a Horizontal Motion). In TGM shorthand, this is a T/V/A grip (Left Hand Turned / Right Hand Vertical / Pressure Point Aft).

In contrast, Grantc79's Grip features a Left Hand that is Turned; a Right Hand that also is Turned (not Vertical); and a #3 Pressure Point that is under the Shaft (not aft). In this configuration, his Turned Left Wrist Cock also Cocks (but does not Bend) his Turned Right Wrist (Perpendicular Motion only and therefore a Single Action). This Grip is labeled Strong Single Action Underhand (10-2-F) and is described in TGM shorthand as T/T/U (Turned Left Hand / Turned Right Hand / Pressure Point Under).

As an aside, when I do employ the 10-2-D Variation, it is almost always in conformance with the Two Accumulator Pivot Stroke Pattern (12-2) of the Third Edition. [Note: Any active Right Shoulder participation makes this a Three Accumulator Pattern.] My intention with this Pattern is to reinforce the Feel of "unrelenting Thrust during Release and Impact" (Active Right Arm Participation) and with a "right palm driven squarely at the Ball (Angled Hinge Action) -- no separate Rolling action".