I've found that without Titan (ie SMN 30-35), it's better to solo as ACN for both the extra dot frontloaded dot in Aero. In fates, I only get kill experience on mobs I hit first if I only have bio that can be applied while I'm kiting the mobs I got threat on that topaz does not pick up.

Also I would like Virus to be different. A 10 second debuff on a 90 second cooldown isn't much use imo. I have yet to encounter a mob that has a period of higher damage to save this for. Either make it longer or reduce the cooldown.

I do like Bane's dot spread although it's only really useful in dungeons and sometimes FATES though once more, things in FATES tend to die too quickly to get me credit.