I bought a 938 Extreme about 9 months ago and was hoping to love it. So far that hasn't happened. I haven't shot it as much as I should have but I'm having trouble adjusting my grip to such a slim pistol. My accuracy isn't where I want it to be and follow-up shots are slower than with my Sig 239. I find the grips on the Extreme to be, well, extreme. They are far from comfortable and add to the thinness. I've looked at holsters online but didn't find a configuration I was looking for which is OWB, vertical draw, leather. I've never owned or carried a 1911 style pistol so I am still adjusting to having to thumb the safety. I honestly wish Sig offered the 938 in DA/SA. No, the Sig 290 is NOT similar to the 938, it has a more blocky feel to it. I'm very much on the fence with this gun. I bought it right and if I could get my money back I would probably let it go.