Good morning, mdt. I appreciate you tuning in and visiting the forum here at DTV!
As Tom noted, I often use a variety of handguns in both the videos and in the TV segments. One reason is that I try to demonstrate that the skills we teach or demonstrate are not firearm dependent, another is the convenience of not traveling with a firearm to various locations. Of course, sometimes, I even use a sponsors gun to see how it performs and demonstrate with it as well for their benefit.
Personally, I prefer the Glock, M&P, XD type firearms because of their efficiency and reliability. FWIW, I have no experience with the CS45.
Whatever you choose, be sure to practice with it!
-RJP