Hi @hyperhumanist. Thanks for sending through a file version with my code and un-upgraded water. I can confirm that the water performance is the same as before the upgrade and that my distant memory of previous performance was quite off.
I appreciate that you took the time to look into this. I especially appreciate that you were able to fix the water occupancy issue in the Y axis. It’s made a huge difference to the aesthetics of a number of sculpted water objects that I had previously made. Thanks!