Hello Peter,
first I wanna thank you for this indepth look. I was wondering about how GP will provide the same moment with the central second position with a double third wheel, but with the second at 9 with a singular third wheel? Because in my opinion they will have practically one engagement more with the first called position.
Hope I wrote clearly, though you can understand my question.
Looking forward to hear from you.
Sincerely yours
Philipp