Thats not the build i run m+ with anyways.
https://i.imgur.com/7z7POS8.png this is what i usually run for keys.
Last week my boss damage was at least 7k higher on average in pure ST, easily, sometimes i would manage do sustain more than 45k.
Now i end up most fights at 35k which is DUMB.
On terros which is a fight with movement i ended up with 43k at the end of the fight, and thats because we had a weak group that dragged the fight for way longer than it should.