I have a S&W 340PD that I carry in a Nemesis inside my chest coat pocket in winter, and it works great. Fleece, jacket, sports coat: invisible in all of them in that inner chest pocket.
But the Nemesis is a bit bulky for my jeans and shorts in summer on my slender frame. The "tab" at the bottom that makes it square up and stick so well in the coat pocket seems to add too much bulk for front pocket carrry for me.
After reading this post and others, I just ordered the Mika round model. For the price, what the heck?
I'll report back after it arrives and I give it a test ride.