This is basically part 2 of my exploration into single-target SEF exploitation on the PTR since FoF was fixed. I started exploring the idea of single-target RJW vs Jab + BoK and naturally transitioned back into "what if.. with SEF?" just to get a numbers check, and I stumbled upon something ridiculous and brought screenshots this time.
This test was done without weapons (later re-tested with weapons and ratios were the same) on the Darnassus target dummies, using RJW between the Raider's Target Dummy and the level 70 target dummy (hence the variation from max to min, was hitting 2 targets with different armor levels) because I could not get SEF in a position to hit just one thing with RJW, but I don't believe that has impacted the test at all because I visually confirmed the numbers coming up and it appeared the same in default floating combat text and combat log.
As you can see, my RJW damage was exactly 70% of my non-SEF RJW damage as expected, however the spirit's RJW damage was somehow HIGHER than even my base non-SEF damage. I know this looks insane, which is why I encourage as many people as possible to test this quickly, I even brought my raid leader that also plays Monk to test this with me and he confirmed it. I don't know what's going on here, but this is a serious bug that could be heavily inflating DPS numbers.
Edit: I should add that this was the standard no procs of any kind testing, no trinkets, cloak, or weapons. Just the absolute basics to prove a point.