Jeff, your sketch is correct. Did it provide any information to you? To me, I see that if you move the target up/down, and/or the bow up/down, the arrow CANNOT be parallel to the ground any more as indicated in your sketch. (I better list my obvious assumption since you seem very interested in picking nits today: you dont move 'each' the same distance one direction)
Any information? Sure.....it set up my next question. I had to make sure I was thinking correctly on THAT one beofre I made any assumptions on the next one. So yeah....I learned something. It's not picking nits.....it either "is" or it "isn't". No grey area. Couldn't move "each" the same.....even on the same bow/setup. Never eluded to that.....and admitted my sketch was not to scale.
OK.....so that being what "is"......
What happens on the straight down shot?.....since gravity becomes a non-factor?
I may have just proved MYSELF wrong in a previous post......which was what I was after.
Assuming the shooter/hunter was 20yds up in the tree (for this exercise).......it would seem the lines would NOT meet back at 20yds (even though they WOULD still meet at 'per Matt/PA' 8yds)......and the shooter would shoot HIGH if he utilized his 20yd pin.
Is THIS incorrect/correct logic?