Also be aware that the Extensor Action used by most people here is the "compromised" version that Homer refers to in the 2nd paragraph of 6-B-1-D. In it's prefered form, it is done with PP #3, not PP #1.
How can PP3 be used unless there is zero #3 Accumulator? If the #3 pressure point is 'on plane', yet the stretch is 'below plane'?
The stretch is 'below plane' because it is pulling the left arm. The left arm sets up on a 'steeper' plane than the sweetspot, so when you pull on the left arm you are pulling it 'below plane.'
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