What is the advantage of GM poisoning?

My Assassin is at 98.7 poisoning. Since they changed poisoning to 12 uses, I really haven't had the need to poison much. What advantage is there to GM this skill?

thx

[imported_Kallie Pigeon]

Considering how difficult it is to gm you would think there would be more to it than just a slightly greater chance to inflict lethal poison and a slightly lower mana cost, but I think that is what happens. I did it and have noticed some improvement but it is slight.

[Poo]

besides the 100% chance of inflicting leathal?

[Nerf-Herder]

Lethal poison is noticably harder to cure than deadly poison. Especially if your victim insists on using normal mage cures.

I have not seen a 100% chance of lethal poisoning someone in pvp. Perhaps only in pvm?

[imported_Spiritless]

100.0 poisoning skill = 100% chance to inflict lethal poisoning to your target through infectious strike, PvP or PvM.