OK, I want to get this straight because it’s really good to know. I’ve replicated your steps and have some comments.
You don’t need the Srf param at the end, you can bake the circles and use them as the “cutters” in the Rhino “Split” command.
Unless you use Pull, your method works only on flat surfaces so you don’t need Circle CNR, as long as you know the plane being used for the flat surface, which in this case is XZ. Instead of this:
You could do this:
After baking the circles (cutters), you split the flat surface in Rhino (3388 holes in ~45 seconds?) and then turn the flat holed surface into a wavy holed surface using the Rhino ‘Flow’ command (which requires that you draw a “Base curve” line along the bottom edge of the flat surface).
Thanks, this is very good to know. What is so deeply wrong with GH SrfSplit that it can’t handle that many “cutters” just as well as Rhino??? (a rhetorical question for you, a valid one for @DavidRutten)