In other words, when you said "For them, shots from the GK would come from the same direction as the TSBD", you didn't really actually mean "same direction".
Nope. Same direction. Human beings aren't terribly good protractors. I asked you a question earlier in the thread. It mysteriously vanished from your reply, and you didn't answer it. This is it:
"Now, given the real world conditions of Dealey Plaza on Nov 11, 1963, how accurate do you think the TP witnesses audio localization capabilities were at the time, in terms of degrees?"
You wanna take a stab at it? Or are you going to push it down the memory hole again?
All things considered, I think they might have been able to distinguish on the level of NW vs NNW, but no better. that's 22.5 degrees. I protractored the image that you kindly hoisted up on your own petard, and the difference in the big red line you drew between the TP and the TSBD and one from the TP to the fence corner is 3 degrees. +/-11 degrees (ie, a 22 degree arc) from your red line comfortably contains every alleged GK assassin location that I'm aware of. If you can do better, let's see it.