I thought i was here years ago and hadn't visited or shot my guns for a while but i am back. I liked my Sigma so much i bought my wife one. I did do a spring conversion on both of them and really like how they shoot. I did the CCW class a couple of months ago before i put in the spring and it was hard to shoot. The instructor shot it and said it was smooth but a heavy trigger. I had bought the spring kits years ago but never put them in because i wasn't shooting them as ammo was expensive or non existent. But now i shoot the Federal aluminum case and can't be happier. The gun shoots great and the ammo is perfect. It is my CCW carry gun both on my hip and with a shoulder holster. Taking my wife shooting tomorrow so she can have some target time before her class...Bob