For those that hate the recoil, try the hogue LCP grip made specifically for the LCP AND a 13lb Wolf recoil spring.
I understand this really tames the LCP. Combined these 2 upgrades cost about $25 with shipping.
I have not seen it mentioned in this thread, but Ruger upgraded the LCP trigger and sights for 2013. Here's a video.
The sights are now like the Rohrbaugh sights. And the trigger pull is shorter and breaks sooner. What the video does not show is that the Gen2 LCP hammer is more pre-cocked than the older model.