I'm pretty happy with my build, damage and setup right now but I'm just curious...

At what point would you guys recommend I dump Sharpshooter for Nightstalker, what Critical Hit Chance is "sufficient" to switch passives?

at 40% crit i would get rid of SS for one of the 3: tact adv/night stalker/perfectionist (i personally use perfectionist with 4 piece nats)