Shortly after I last posted to this thread I recieved an Email from a very nice gentleman who makes holsters as his hobby. He made me a very nice black, open top, IWB holster for my CS45.
I have been wearing it on and off duty and at my part time job for the last week and I could not be more pleased! Very comfortable and holds the CS45 securely while still allowing a fast presentation.
And as a bonus, it also works with my V1 4513TSW. Thank you sir!
Best regards 18DAI