Well, it took a lot of time but I learned lots & lots doing this one. The "banding" problem I was having at the tops of the fall was actually being caused by the underlying rock terrains behind the falls and beneath the upper level water not meeting in a proper miter. There was a gap and since the water itself was very transparent, the reflection off the water caused the gap to show through as a "band". Tightened that up and eliminated that problem. Creating the splash with spheres was the big chore. Ended up with 9 larger elongated spheres and about 18 smaller round spheres filled with a cloud material - it was the placement of these that was tough for me. I duplicated the falls terrain and enlarged it very slightly and filled it with tea kettle steam cloud material. This gave the falls a depth they hadn't had before, so they don't look like just water running down some walls now. With the splash and the spray in place, I was able to eliminate the fog I had placed in the "pool" to simulate spray and this revealed the swirly turbulent water better which gives more of a feeling of movement. These changes made a significant difference. This was a fun fix and I learned like crazy while doing it. Thanks so much for pointing me in the right direction, I really appreciate it!