Mitch Todd: "The crux of your notion of a superior route down Elm is that the limousine would have traveled faster through Dealey Plaza. Therefore, you have to show that the only limit to the speed of the limo was the two turns. You have yet to do so. Furthermore, you assume that the primary, if not sole, criteria for route selection was to facilitate the speed of the limo. You have yet to substantiate that as well.
"I'll note in passing that Alvarez plotted the speed of the limousine in "A Physicist Examines the Zapruder Film" and found that it runs at a constant speed of about 12 mph between frame 160 and the beginning of the deceleration that begins just before the last shot. If the last turn unduly slowed the limousine, then there'd be marked acceleration as Greer strove to get the car up to speed."
Your still avoiding the two turns. Explain why they were needed.
The route that was chosen is simply a fact of history. The various rationales, policies, arguments, the whos, hows, and whys were aired out years ago in the various official investigations. You don't need me to explain them, if you've done your homework. That being said, if you want to argue about it, you need to produce a good supporting arguments for your conclusions. So far, you've never gotten further than saying that you think that a straight-Elm route would allow the limousine go faster than the Main-Houston-Elm route. But you've never shown that any of the organizers, up to and including the President himself, had the proverbial need for speed, or that they would have taken the Elm route faster than the Main-Houston-Elm one. It has already noted that, were high security that important, they would have skipped downtown altogether and done the Mockingbird-Harry Hines run. You've been shown via news film that motorcades in other cities ran slowly. After all, in politics, visibility is an incalculable asset, and it's hard to be visible if you're zooming by at 60mph. You've been pointed to Greer's testimony that the limo slowed down to 15mph once it got to the crowds downtown. I've even shown you via Alvarez that the limo ran at a steady 12mph from Z160 until Greer let off the gas. Given that evidence, there's little room to argue that the Elm-direct route would have resulted in a faster limousine.
Which is why you ignore all that, try to turn the argument around, and have everyone else rehash what was committed to the page decades ago. You're MO is well known, and you really aren't that clever about it, at that.