"...[that] doesn’t mean that the maximum they could ever be off is two minutes."
You are technically correct.
Thank you. That invalidates your entire claim that he said that the dispatcher clocks were kept to within a minute of each other." You omitted “or so” and “normal procedure” in your dishonest summary.
The problem is, if the radio dispatcher clocks were that far off, we'd see it in the data.
What data? You can’t use the time announcements to validate the time announcements. There is no “data” that tells you how far apart they were that day.
We don't. So far, you have presented no evidence whatsoever that any of the dispatcher clocks were out of the spec Bowles described.
You’ve presented no evidence that they were at most a minute apart that day. Which is your claim.
I'm not sure where you get the idea that the channel one recordings have been "edited" or "dubbed" outside of where consecutive recordings have been spliced together. There are a handful of splice points between 12:20 and 1:20, but any hope that channel one is some massive spliceapalooza is badly misplaced.
Ignoring your “massive spliceapalooza” strawman, a splice IS an edit. And of course they were dubbed. Multiple times. None of us are listening to the original Dictabelt and Audograph. And they had a tendency to skip and repeat sections. Those (at least) were edited as well.