That's a lot of Ifs.
You seem to miss the point. Only ONE of the "ifs" needs to be true to negate the SBT. They ALL have to be false in order for the SBT to be possible. And then you would still need convincing evidence that it actually occurred or maybe some convincing proof of a missed shot
Quite a few of your 20+ witnesses are missing one of the three shots from their accounts. They do not account for the real first shot.
??They described what JFK did in response to the first shot. No uncertainty there. Why they would have to count the shots afterward?
Not necessarily. If there was more time between shots one and two than between two and three then that just means that the first shot was earlier than is generally believed.
Since there were at least 5 seconds between JFK's reaction and the head shot, the last two were not "in rapid succession"as described by dozens of witnesses, if there was no shot in between. And in order to make the 1-2 spacing noticeably longer than 2-3 the first shot would have to be well before Zapruder started filming (the Max Holland conjecture). Good luck fitting that to any evidence.
That one is easy. JBC was NOT sitting in the middle of his seat. The ITEK analysis has him as much as 8.6 inches inboard of Kennedy.
That puts Connally's right armpit in front of JFK's midline. Not enough. And that was the maximum range. He could have been 4 inches inboard of the president.
I wasn't aware that the WC came to that conclusion. It's hard to see how they could have, since Kennedy can't be seen in Z223. Kennedy does not show a reaction until between Z225 and Z226.
JFK's hands are seen and they are in the position that many witnesses described him assuming in response to the first shot. They are in a very different position than in z193.