All the above is equally true for putting

[Par71]

From 6-B-3-0 (4th paragraph):

All the above is equally true for Putting. That is, the Swinger can use a "Reverse Loft" Putter for a precision "Low Point" Impact - really a very accurate and simple procedure.

Lots of questions here:

1. "Above" is the description of the third power accumulator. What is the relevance of acc. #3 for putting if one is to zero out #3 in putting?
2. What is a "Reverse Loft" Putter? Holding the putter face like in the second drawing of 2-C-4-A? Or
   is that a special kind of putter?
3. Why can only the swinger use a "Reverse Loft" Putter?
4. The second sentence quoted above seems to draw a conclusion from the first. Can anyone explain the reasoning behind that in more detail? What does swinging with a reverse loft putter have to do with the #3 accumulator?