Gotcha. That is the part I was wondering about.
I have done that very prune before. It can be very successful.
Your explaination was sound, I only confused myself ; in wondering if this was all coming off a pair.
I thought you may be doing this,,,
Here is a similiar approach - same(iliar) thing, using 2 pair
View attachment 24772
Double mainline, 16 tops, zero height.
Topped. First and second branch sets removed, third and 4th branches topped twice.
At any rate, you looked cocked to fire.
Am I recalling correctly ? You are fellow Albertan?