Another vote for TercGen grips. I have them on my CS9s and CS45. The guns should have come from the factory with them IMO.
Were it not for TercGen grips I would have sold the CS45. It did nothing better than my other carry 45s. Now its in my daily safe and carried quite a bit.
Not only is TercGen a talented craftsman, he is a hell of a nice fellow too!
Regards 18DAI