How to apply voronoi to 3D surface equally?

I adapted some old code from here to create a gradient Voronoi on your surface:

It doesn’t address the issue of fading to zero holes near the top but perhaps is food for thought? I barely remember how it works. The disabled purple group uses the loft method you used but I think cutting holes in this surface looks better, even though it’s extremely slow (11 secs.). It’s much faster using the pulled PLine instead of the pulled Nurbs curves.

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