Testing tonight yielded some good results from conversing with our other DK, first of all cast DA in melee range to get max amount of casts off I cast it running in and got 7 casts. When testing I had a few cases of deflections which really lowered the dps of the DA. The highest amount of casts I could get with DA was 12 with Vial and Drums + Haste enchants and gems but this also led to the highest Burst I was able to achieve at around 550k with DA doing around 4 million damage within ring window. Of course my rotation isn't polished at all plus with no presoaking for more RP to fuel into DA but just wanted to share this.