During testing today i tried both fire ele's and the Primal one actually did less damage for some reason. Standard ele normally did around 2mil+ and the primal barely got over a million.
Standard ele https://www.warcraftlogs.com/reports...t=30&source=12
Primal ele https://www.warcraftlogs.com/reports...t=34&source=12
So i just ended up using Elemental fusion despite the nerf. Maybe im missing something but they both did 16-17 cast and standard ele's hits are just way higher for some reason.