I've been playing a Frost DK for all of Legion and have been rolling with the RA Oblit talents and rotation. Last night during Normal NH someone suggested trying the Machine Gun spec. Does the MG spec/rotation outshine RA Oblit in raids/high mythic+? I haven't gone down the BoS route yet as I have the bracers and trinket as my legendaries. Also have a 2 piece set bonus. Typically pulling between 400-500k DPS on single/low target fights at 887 item level.
Thanks!