So I just got my beloved Sig 220 back from the factory. I bought it used, private party. Sig has a plan where, for $100, they'll install new, factory night sights, replace all the springs, and give it a check by a gun smith for safety and functionality. It's the best deal ever. Night sights are nice and shiny, and I'm amazed at how they glow in the dark. I didn't realize how much new springs would help either. Trigger pull is incredibly crisp, and the recoil spring is A LOT stronger. I decided to pop the slide off of the frame, and while the old recoil spring would move it about half-way down the rail, the new recoil spring will shoot the slide *ACROSS* the room if you don't hold on to it. I'm so happy with my (mostly) new toy. I can't wait to take it to the range and put it through its paces.