I also have the nauticam small hd setup. I do like the idea of flipping it upside down. Never thought about that before.
I also like the nauticam setup and personally don't know how I did it without it in the past. The focus peaking is a huge selling factor for me. I also find the color to be pretty good as well. It is very easy to use as well with different modes depending on what you want to see. You can flip between them with 1 button push. There are some cons however that I think Nauticam could address.
-The HDMI cable is very finicky. I always travel with a spare cable and bulkhead.
-The housing is larger than it needs to be.
-The shade is an addon that is ridiculously priced. But I do like it. Especially for shallow water.