Thank you Michael.

Merge improvement is good to know.

Using Merge just now, in MoI5beta, and the intersection came out correct.
And Project of bottom line points also came out correct.

One last observation for tonight: MoI5beta:
Using the last .3dm, with 10 vertical LineWeb lines:
(Without Merge)
If the re-joined curve is shifted over a bit, so the LineWeb lines do not intersect the former segment ends,
the intersect occurs correctly, (but of course in different locations.)

- Brian

As expected, Merge does not help with getting correct Intersections or Projections, in MoI4,
(in the current situation anyway).