I'm wondering about the advantages and disadvantages to early plane shifts.
The wise one wrote that an ideal pattern would have the least plane shifts, however, plane shifts are accepted. Is there a relationship between the number of shifts and the earlier the shifts occur in the backswing?
Years ago I was a fan of early Plane-Shifts. Then I changed and I think that Late Plane-Shifts have their place, especially with multiple Plane-Shifts. In the Book somewhere (I'll try and find the reference) it says that the Last Plane shift is the most important one and that it occurs later in the swing than earlier ones.
Plane shifts are like kids. You can't stop at one. You should have two or more. It's a balance thing. One going up so why not one going down? Think Rhythm. 1,2 or 1,2,3.
I don't know, if the earlier during the Backswing a Plane-Shift occurs, means that you'll have more of them. But, it sure does give you an opportunity to have as many as you want.
Look for a thread that Bucket posted some time ago. It was titled "Shift into high gear with Plane-Shifts".