I am not reading anything into it.
Oh, yes you did. I only wrote, "parade speed," and attached the value of 15mph, which is what Greer testified to and is supported by film of other motorcades.
You decided that I musta meant some kind of "protocol." And then you demanded proof of a "protocol" that I never claimed.
Your claim of 15 m.p.h. has not been supported, thus, it carries no weight. If Pouty's claim of 44 m.p.h. is nixed when he did this kind of work for years then yours is certainly nixed.
Again, ~15mph (I'll put in a tilde to clairify this time) is the speed attested to by Greer and supported by film of other motorcades. The important part is that it's so slow that the turns wouldn't in themselves significantly affect the limos speed, if they slowed it down at all.
The m.p.h. thing is a distraction from the main point--the two turns were NOT needed.
The whole trip downtown wasn't needed, either. As I've said elsewhere, if the priority was to minimize the President's exposure, they would have avoided the CBD and taken Westbound Mockingbird to Hairy Heiney and thence directly to the Trade Mart.