I've looked it up and it seems to be exactly the same DPS ?, did I do something wrong? Here's the output: https://www.raidbots.com/simbot/report/hX2Zyxbt5cGpKk6oH5PLW4
If DPS is the same, I'll just stick with my 405, as I don't have to rely on an extra mechanic from demonic transformation.