i dont get why you'd put VI on a decimator. Its a turret and has a lot of HP, what does it gain from firing first or moving last? In terms of 1pt epts i'd rather just slap crackshot for when i get a high-crit hit.
RAC at 10 can boost out of Dengar's arc, can shoot before whisper cloaks, can crit Soontir before he fires and negates all Soontir's post-maneuver nonsense because, in the end, he still has to guess what your arc will look like while he's moving. The utility is pretty clear against both Palp Aces and Dengaroo. Obviously does nothing v Scouts, but oh well.