Again, the Left Arm is On Plane when the Left Arm Flying Wedge is On Plane. Not before (during Address and Start Up) and not after (during Release and Impact).
In other words, the Left Arm or Left Arm Flying Wedge should theoretically be Turned On Plane between the Startup Swivel and Release Swivel.
Originally Posted by Mike O
Could the left wrist be precisely on plane somewhere during the backstroke or downstroke- for example where the left arm is parallel to the ground on the backstroke or downstroke? - it could but I really wouldn't think it would be worth noting.
I looked at a few down-the-line photos of various pros and noticed that most time, their Left Palm (and hence the Left Arm) is rarely turned directly On Plane between the Startup and Release Swivels. But it's still Turned, just not exactly On Plane, as it theoretically should do.
I've slept on this now, read the book, meditated on it etc, and here is what I think the solution to this problem is:
The plane of the the left wrist cock is not in the plane of the left palm -
or:
a cocked left wrist is not at a 90 degree angle to a bent left wrist.
Firstly, look at pictures in the book - say 10-6-B #2. The left arm is not in any way on plane, but the left palm is. Per 7-2, the back of he flat left wrist faces down the angle of approach at impact fix - therefore essentially the back of the left hand faces out towards right field (or in my country out towards long off or cover). Now, for simplicities sake, imagine the left arm at low point, where it is perpendicular to the plane line. I think wrist cock at this point would also be perpendicular to the plane line - but because the left wrist/palm faces somewhat to right field this won't be in the plane of the left palm.
This kind of wrist cock gives the look you see in Lynn's videos (I think), and in the pics in the book (e.g. 10-6-B #2), where the left wrist seems to cup a bit at the top (or in fact, cup a bit as the wrist cocks). Basically, it creates an angle which allows the left palm to be on plane while the left arm is not. Note that when you uncock in this sort of plane however, that the left wrist is flat.
The on-plane motion of the clubshaft directed by the lag really controls what motions will be made- the uncocking flat left wrist and any roll are really subservient to the on-plane motion. I could go into further detail regarding the flat uncocking left wrist, but I think it's pretty obvious if we start looking at swing sequences that the left arm flying wedge is never on the swing plane. However, if you've thought before that the left wrist would need to stay flat and on-plane for any uncocking to create an on-plane motion of the clubshaft then your're brain's going to scramble for a while- dealing with a different concept.
The easiest solution for a contrary opinion would be to put up or point out swing sequences where the left arm flying wedge is on-plane as you described. After all, if the left arm flying wedge is on-plane then the left shoulder would be on-plane. A
But if the left palm is on the plane, and the left shoulder is not, then neither is the left arm, hence there must be an angle between the palm and the arm - how can the left wrist be flat?
Thanks,
Chris
Oh, I get it. Your problem lies in not understanding the Plane!
Please go to 10-6-B #2 now. You can see the Left Palm is Turned facing toward the Plane as per Standard Wrist Action. Is the Left Shoulder or Left Arm On Plane? Clearly not! However, the Left Arm Flying Wedge Assembly is still maintained -- the Left Wrist is Flat.
(Now, you should not use a photo for a purpose beyond its captioned intent. And I rarely do that. But this is the best photo I could find to illustrate my point.)
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