Anyway, WC apologists, as we've seen, have no even halfway credible answers for the Z186 shot reactions. Admitting that the Zapruder film shows that JFK was hit before Z190 was perhaps the most contentious and controversial issue that the HSCA PEP discussed, because of the obvious implications, given the fact that the sixth-floor gunman's view of JFK would have been obstructed by the oak tree from Z166-210.
You must think visitors to the Forum are pretty naive to believe anything you characterize about LNers, the WC and the HSCA. The Warren Report said there was a gap in the foliage.
"Based on these calculations, the agents concluded that at frame 166
of the Zapruder film the President passed beneath the foliage of the
large oak tree and the point of impact on the President's back disap-
peared from the gunman's view as seen through the telescopic lens.
(See Commission Exhibit No. 889, p. 100.) For a fleeting instant, the
President came back into view in the telescopic lens at frame 186 as
he appeared in an opening among the leaves. (See Commission
Exhibit No. 891, p. 101.) The test revealed that the next point at which
the rifleman had a clear view through the telescopic sight of the point
where the bullet entered the President's back was when the car
emerged from behind the tree at frame 210."
Looking at CE890, the gap seems to begins earlier than Z185. Personally I don't think a shot was fired between the Z150s and the Z220s. I'm just pointing out that the "obstruction" of foliage you maintain is over-dramatized and under-researched.