My detailed post was lost so I'll just summarize here.
I adore the P-10. I replaced my love affair with the HK VP9 after eight months of evaluating it then running drills against one another.
Purchase the Cajun Gun Works Striker. There are two versions. Read the details on their website. I prefer the crisp break variant. Their striker is polished while the OEM one is very rough. The CGW part cleans up the subjective trigger pull.
Sights: Night Fision. They have an Optics Ready set of sights and the sights just peek over the RMR body. The sights are Melonited as well so you won't have to worry about any corrosion.
I love the size of the P-10C variant and it's really my favorite polymer pistol to shoot.