[O.B.Left]

Actually Jodie Mudd used the "Shoulder Turn Throw" trigger 10-20-C to start the club down...not the lower body. One of several triggers in 10-20 to start the downstroke sequence.

DG

But a Release Trigger is a thing that Triggers Release not Startdown, by definition, no?

After moving the weight to the left and initiating the Pivot Train's ground up sequential firing the shoulders (the right shoulder) eventually bring the arms and with them the club down plane. Startdown in a club sense but preceded by all of the components ahead of it in the Pivot Train.

Now if you are talking about the Pivot Train as being an anticipatory deal then that is a different matter. No pro actually leads with the right arm on a full swing anyways. That would zero out the Pivot Lag, like a one armed lobster playing golf.