This is amazing, thank you so much for putting this out there - this is exactly the sort of thing I'm looking for!
You've done me a huge service by making this available at all, so I hate to even ask, but would it be possible to reach out to you for some help/pointers in making some tweaks (e.g. starting one instance of the shader "out of phase" with another by a consistent amount, or gradually changing the values the way you suggest in the comments)?
Either way, this is amazing, thank you for putting this out there!