Well, I have to say that I am a fan of the Enigma. I initially used it with a V Development holster, but I sent the slide in to get milled and that holster was not RDS compatible. I ordered a JMCK Enigma shell while the slide was getting surgery at Battlewerks. I got the slide back and sighted in and I have been carrying it for week now. I can't tell that there is a RDS on it while I carry it. I spent the weekend removing stumps and blackberries from the property and had no issues with it. Right now I am wearing it with workout shorts and a t-shirt and it just disappears.
I really think this is one of the best concealed carry products to come out in recent memory.
My next firearm purchase is going to be a LCR in either .38 or 9mm and I think it will be even more concealable.