[golfbulldog]

My limited understanding so far is that elbow position has less to do with extensor action and more to do with wrist action and 7-3... i.e how you choose to stress the shaft... hit or swing...

Elbow position depends alot on when you rotate your left face to plane ( or is rotated to plane)...early rotation to the plane keeps elbow by the side and lower and works with standard wrist action.... whilst single wrist action tends to delay the rotation of left hand to the plane and hence elbow gets higher ...

So elbow position at the top of the swing dictates the location of forearm position which in turn dictates the mode of shaft stressing / loading lag pressure...?

So within the confines of a straight plane line, i think the choice of wrist action dictates the rest.... and wrist action is easily influenced by adjusted address ....

Starting at impact address, like Brian does, makes early rotation of the left hand to plane weird feeling (IMO).... startin at mid body hands makes standard wrist action ( early rotation left hand) easier ...like Sergio....Maybe!

But neither are absolutes....IMO Brian's Backswing has some components which are more "hitter" whilst his downswing is definitely "swinger".... it matters little because he is remarkably close to having 3 imperatives and 3 essentials on nearly every shot!!

Is there some old BG footage... before the makeover!! He has a really solid pattern developing now!!! Intersting to compare with the old Brian!