IMO the fish gills were a love hate thing. Me, either or.
I love the RTF2 frame. It gives me a nice grip plus the gun doesn't move in the hand when shooting. I also use the standard Gen 3 frame which I like.
I achieve my grip in the holster before drawing, because I wear the holster in the same position, all of the time, and know where the gun is in relation to my hand.