I dumped the werden spec and went back to straight arsenal. Kolto shell was pretty borderline to begin with (the once every 3 seconds really blew in PvP, its only saving grace was that it was free and spammable, and it wasnt even always worth the GCD to be honest). The changes to kolto shield and supercharged gas make timing those abilities more hassle than they are worth. I don't think any of these abilities were overpowered in PvP but I can see how they are in PvE, where supercharged gas is up almost perpetually. Its a shame a fun PvP spec got the nerf bat, but thats the way she f***** goes.
As for Arsenal, I really am looking forward to an increased proc chance on unload. Fusion missile->unload->explosive dart->tracer->HSM->Rail Shot is absolutely lethal and it all hits quicker than it looks like it should.