I'll start to help, but understand that I'm not an authorized source.
However, the following is right out of the book.
Firstly, you must understand that paths are for hands and lines are for clubhead and forearm. So that makes your first few stated assumptions incorrect. That should answer some of your questions in the following.
A straight line delivery path holds the hands on a line from the top of the line
position directly at and through the aiming point. No plane shift.
An angled path is for a plane shift; a nearly vertical path of the hands down to the elbow plane followed by a straight line at and through the aiming point. Hands we're talking here, not clubhead.
The above has nothing to do with cross-line or on-line, which refers to delivery of clubhead and forearm. More on this later.
....
Hi Loren, thanks for your reply but this quote states that paths (ie. of hands) are related to the concept of being cross-line or on-line...
7-23. POWER PACKAGE DELIVERY PATH
The three possible paths of the Hands down the Inclined Plane (10-23) are the Basic Delivery Procedures and the Delivery Line Equivalents (2-J-3) must comply with them. Per 2-J-3, the LINE Delivery Paths are "Cross Line" procedures and the CIRCLE Delivery Path is "On Line" in their relation to the geometric Plane Line.
You're right, it is confusing and will take some incubating.
I'm mainly going on Lynn's instruction on the Collin Neeman
series, Chapter 8 Delivery Path.
In that, and other places, Lynn always says that directing
pressure point #3 directly down the mentally-constructed
straight line from Top to inside-aft quadrant is the same
as tracing the line with pressure point #3.
I'm thinking now along the lines of, when drag loading, the
delivery line of the clubhead is the arc of approach even
with a straight line delivery path of the hands.
10-23-C, Top Arc and Straight line references drag loading,
10-19-C.
In 10-19-C it says "...accelerate the Clubshaft lengthwise....
Maintain this motion until the Release switches ends. This is
possible only if,..., Inertia can hold the Clubhead inside the arc
of the hands or hold to a Line Delivery Path (2-L)."
In fact, 2-L says nothing about a line delivery path. Rather
it's talking about only a Form III lever used in a golf stroke
and that no law of force or motion can be annulled. So that
is no help. Perhaps there is a typo in 10-19-C referencing
2-L?
At any rate, one could hardly go wrong tracing the base line,
or directing #3 in a straight line from Top to inside-aft quadrant
when drag loading. You might notice in start-down waggle that
the clubhead is taking an arc of approach path in either method
of monitoring the delivery line.
When Hitting, you also have an option of using Angle of approach,
10-5-E, a very steep plane and a cross-line bump.
I'll continue to incubate. I'm pretty sure that a line path of the
hands is not particular to drive loading, and that in swinging it
doesn't require an angle of approach, or "cross-line bump".
Last edited by Loren : 01-04-2008 at 04:13 AM.
Reason: Clarify referencing 10-19-C from 10-23-C.
...I'm pretty sure that a line path of the
hands is not particular to drive loading, and that in swinging it
doesn't require an angle of approach, or "cross-line bump".
Hi Loren - I agree with this bit...
But it does not make the words I found in 7-23 easier to understand!
It clearly states that the Line paths are cross line procedures. That section was not present in the thrid edition (it first appeared in 1979 - I think - I do not have the 1st or 2nd editions but it was definitely not in 7-23 in 1975 3rd edition).
Homer must have meant what he said.
Is is a way of expressing the feeling that Hogan had of his downswing going out to right field? ie. a cross line feel of the hands??
IMO, and not an authorized one I must say, golfbulldog, you're right in a lot of ways.
Per 12-2-0 the standard variation for the swinging basic pattern component 23 Delivery Path is Top Arc and Straight Line, not Circle. Of course that means down the Turned Shoulder Plane, the shoulder needs to go down that plane also, hence a parallel hip slide, or bump. If you don't go to End then there's no Top Arc out to Top before the straight line path.
And per 7-23, Delivery Line visual equivalents must comply with the cross-line procedure of line delivery paths and the on-line procedure of circle path. So you're right there.
However, the reverse may not be true. i.e. the delivery path (hands) may not have to comply with the delivery line (visual equivalent). For instance, per 2-J-3, the visual Arc of Approach applies to both 10-23-D (line) and 10-23-E (circle). The Arc of Approach is an optical illusion to the golfer. Tracing the true plane line is even more precise and does not alter the clubhead arc.
I might add that the reference to 10-23-D should properly say 10-23-C since it's the same as C, which is the preferred Turned Shoulder Plane. Why refer to the inferior plane shift?
Now, in 2-J-3 we have that the arc of approach and the angle of approach are always interchangeable. Hence Lynn Blake's equivalence in the Collin Neeman instruction video chapter 8, a swinging procedure.
The question hanging out, to me, is "Does a swinger bump cross-line when using Angle of Approach visual equivalent?"
I think not because of the difference between CF "throw out" and the hitter's right forearm drive-out. I think the difference is in the right shoulder's active versus passive participation. The hitter, if using the active right shoulder for a 4-barrel hit uses it very briefly, a fraction of a second before switching to a right forearm drive-out with the right shoulder as a moving platform to support it. As such, the right shoulder's motion must change to the new steep 10-5-E plane line which requires a cross-line bump. This allows the hitter to drive it down to China, chewing up a lot of turf.
The swinger using the angle of approach visual equivalent can start getting too steep and hitting it fat. Then according to Lynn on the video, it's time to go back to tracing the true plane line.
Heh! I agree. Scratched a lot of head fur off m'self, thanks to bulldog.
So here's the deal, IMUO (in my unauthorized opinion).
Just trace the base line with the #3 pressure point and you're golden.
Or equivalently, direct the #3 pressure point to inside-aft quadrant.
How's that?
Bottom line according to the book, if you're using Circle Path you have to use Arc of Approach, or trace the plane line with #3 PP. Otherwise, any visually equivalent line is an option.
As a swinger, you bump parallel because you're using CF throw-out for alignment.
As a hitter, if you choose the steep alternate plane angle of Line of Approach
(10-5-E) you have to bump cross-line and cover the line on the ground with the clubhead, or trace the alternate plane line with #3 pressure point.