Let's say Gloria was in a position to see JFK's head explode and that made her run as fast as she could back towards the TSBD building.
It has been demonstrated time and time again that she could have covered that distance in 15 seconds.
If there is something about the calculations that is confusing you please let me know.
Look at the Weigman film - less than 10 seconds after the shooting and the area that included Gloria and her friends is totally clear.
Look at the 'woman in white' on the steps in Darnell and Couch, linking arms with the woman in the black head scarf and refute that these are the same women we see in the Z-film. This is the evidence that Gloria was the woman on the steps talking with Lovelady in Darnell/Couch.
Rather than your 'instinct' provide something stronger.
I agree that much of what you are presenting is IS POSSIBLE. My issue is the Timelines that have been assigned to this short period of time. This includes the Wiegman Film timeline which you use above to support your theory. I do Not believe the timelines that have been assigned to Wiegman, Darnell, and Couch Films are accurate.
Remember, 2 years ago when the Sixth Floor released the opening :20 seconds of their 1st generation Darnell Film copy, the first few frames of that newly released footage showed ALL 3 Camera Cars at a Dead Stop. It is AFTER seeing these camera cars at a dead Stop, and we see the driver of camera car #2 standing on the ground outside of the car, that we then see Officer Baker running up the Elm St sidewalk and across the Island toward the TSBD. That camera car driver did not jump out of that camera car and then stand there only 10 seconds after the kill shot. Nobody jumps out of their car when only sitting in bumper-to-bumper traffic for 10 seconds. We ALL routinely sit inside our car at a traffic light for a much longer time period than that.
And the Wiegman Film? Remember, for 30+ YEARS the Wiegman film was ballyhoo'd as being filmed "continuously". Took decades, but this Bogus Wiegman Film timeline was finally proven to be incorrect.
The assassigned timelines of the people we see in the Wiegman, Darnell, and Couch Films are Wrong.