You can find a lot more info over on the S&W Forum. The Search engine doesn't always seem to work as well as might be desired, though.
The CS45 was a popular plainclothes/off-duty gun for LE, but it seemed to be pretty underrated when it came to the commercial market.
Sub Club #9; .40 S&W Club #1953; S&W Club #3913
Retired LE - firearms instructor/armorer