what are the concerns for building a good NS? I was thinking 39 stealth 39 envenom 34 pierce 44 CS and rest in CD but I have never played one before so not sure about it.
Maybe you should reconsider to have a rr3 spec from beginning, as with tasks rr3 will be pretty fast and easy to get. If you want 44cs then I would prefer: 37 stealth 37 env 38 pierce 18cd 44cs
So you get comp 50 and comp 51 for stealth, env and pierce with rr3
The key is: Composite 50 envenom Composite 50 stealth Composite 51 weapon 18 CD rest CS
This gives you all the tools you need to be most effective. I had a blast with my NS on other servers. I had a winning record vs enemies, and I never considered myself a great solo player. Just decent. After playing an NS, I think they are definitely underrated as a class.