You and I made similar points. He probably believes that he has “utterly refuted” both of us. Much like your belief that your opinion utterly refutes anything other than a first shot at Z223.
The simple answer to that is that there is abundant evidence from witnesses to conclude that the first shot struck JFK. So Dan is on solid ground there. He is also on solid ground in concluding that the shot sequence has the last two shots closer together and in rapid succession. The only point on which Dan and I disagree is whether there was a shot after the head shot. I think we both disagree with him on that.
It is not a matter of "utterly refuting" anyone. It is a matter of reconciling all the evidence in the best way possible. And the problem with the SBT, especially the second shot SBT, is that there is so much conflicting evidence. On the other hand, there is very little conflicting evidence in the rest of the case. There is the odd witness who doesn't agree with the rest of them but on all the witness evidence it is easy to conclude from just the witnesses that:
1. there were 3 shots
2. that the shots appeared to come from the same location
3. that many witnesses were confused as to the direction of the source - except those witnesses close to the TSBD or in the TSBD.
4. that a pipe like object was protruding out of the 6th floor SE window at the time of the shots
5. that Oswald owned the MC found on the 6th floor.
6. that Oswald's palm prints were on the packaging found in the SN
7. that Oswald had carried a longish package to work that morning.
8. that Oswald had walked out of the TSBD within minutes of the shooting without telling anyone
9. that Oswald went home and got his hand gun.
10. that Oswald walked from there toward East 10th Street where he then encountered Officer Tippitt and shot him.
11. that Oswald resisted arrest at the Texas Theater and pulled his gun out while being arrested.
On all of these issues, there is really no problem with the witness evidence. The only issue on which there is so much witness evidence that you do not accept is the SBT, particularly the second shot SBT. I have less of a problem reconciling the witness evidence with a first shot SBT but for the Connallys' evidence and the notion that the second shot missed the car but 2 seconds or so later hit the bulls-eye.