I know rebalance is coming soon (tm) and our nanoskills are being updated so they are castable in combat without swapping but right now this one nano (and all the retarded shades who abuse it) just makes pvp on keeper even less fun than it could be right now.
Atm I can kill:
NTs, Engis, traders if I get the jump, fixers if I get lucky with white hits and procs.
That's it, literally.
And I'm not your usual hm/bio/blessing/reaver keeper, who can't kill ANYTHING unless you're an atrox.
I don't know how much nanoskill AR shades get at endgame but I know its significantly lower than 2.3k (my NR), I do resist fairly often (2/5 perhaps?) but still its more the annoyance factor more than anything else and the fact shades have higher runspeed than keepers and actually follow me in BS just to cast this.
When a nano is being abused to this extent I think something is wrong.