491 acc is what you should aim for, Over acc is not really an issue, cuz savage requires even more accuracy. As for gear sold chest/pants are too good to miss, ring is good too, ramuh x ring is better then HA ring. Crit weighs slightly better then Det.

As for kiting, i pull with bio, then just miasma where ever you want it to be. You can turn the renault forward after u miasma so it gets petrifacation so you will never have a bad timing during the last transition. stack 4 is not really worth it since they change something in the patch. You can pull about 300-350 dps in t7 while kiting, so you only really lose about 100 dpsish. As for range, most cases precast miasma before ur target location. In extreme situation where timing with shriek is terrible u CAN miasama 2 to pull and auto root it in place, without getting clubed on the face.