Some NW mechanics questions

Which is why you use L7 or Vampire to clean up (since they'd be stronger than Sling anyway).
I used sling to clean up + further poison at 73~103 in squids, I refused to recharge

Level 16 is usually the bare minimum level that Poison skills become useful (besides Venom, since it's insanely strong even at level 1). At level 16, you'd have to double poison and then clean up, so you'd probably have to dual channel (which you should do anyway for best exp gain).

I used it at level 10

Edit: In fact, most F/P mages cap their poisons at level 28, which is 95% HP poison (which is still enough to 1HKO after poison usually; DTs will be left with 1600 HP, Squids would have 2300 HP, Rissel Squids would have 2450 HP, etc, so most of these you could finish with one L7 or maybe one or two vamps).
I maxed it, because I like continuous poison instead of focusing on killing off with different skills
Also, Sharks should be a more viable option for NWs than F/P's mainly due to the fact that there's no risk of having MG dispelled. Knowing this, I'm probably gonna farm the hell out of SE20 and Green Books for my Sniper.
Squids is far faster, due to haste never being dispelled, and fj is actually pretty useful, although it is underwater

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