Hi WN,

re:
> Michael, what's wrong with this option? The difference is there but less.

Well it's different in shape from the original design which had these profiles on parallel planes:





In your version those spots are not on parallel planes and so not equidistant as measured in 3D. But that's the kind of thing you would need to do to make the top-view projection of it to look equal, similar to the slanting cones that I showed above.

It's not clear to me what the desired result is - should it be equal spacing in 3D space, or should it be equal spacing of projected shapes?

I think Mala will need to give some more information on that.

- Michael