UZI SBR AWC,
Have you had a chance to hold a CCF grip/M11-9 combo?
When I was making mine, I made a mock up. The CCF grip is a Glock 17 that needs some of the top of the grip removed so it get shorter in height. It feels more like a G19 with very little curve for the web of the hand. I thought long and hard but never could get used to that feel. I eventually abandoned the project.
Marty in UT (Shockwave Technologies) put more curve to his grip to help the feel.
Len added some material for the curve with his welds and I added more to my prototype and still thought there needed to be more. Imagine a Glock with a grip where the slide meets the finger divot.
I still think the concept is good it just needs a better solution than the CCF grip.