My stats in screenshot below for reference, but they're irrelevant. Same for actual dps values; just their relative ratios matter. All tests done in 1 sitting on a dummy, without HB, stat changing AAs or procs. All dmg is pet-only, fights started by telling pet to attack OldGM scout: 72m -- base X App: 115m -- 1.6x Jour: 161 -- 2.25x Adpt: 170m -- 2.35x Xper: 193m -- 2.7x Mast: 206m -- 2.85x GM: 222m -- 3.1x Anc: 251m -- 3.5x Soulburn is identical for all tiers of epic, but a ~1.3x of OldGM DPS mod and WDB do not effect Reaper autoattack dmg This test doesn't account of possibility that oldGM/epic spells are affected differently by CombatMit (no reason to think so, but no unreasonable). In terms of real dps increase for your personal situation, you should be able to figure it out easily by running in raid with your old GM pet renamed for some bosses and scaling according to multiplication table above, then accounting for whatever reported issue with Reaper autoattack in T3 content stats parse
discussion whether it's a nice dps increase or not is obviously irrelevant currently until all the broken asc and epic spells are fixed so we have something meaningful to compare to and all the fight durations aren't skewed into nothingness
