Comparing Post + Pre Echo FCOB DPS
Hey guys, ever since echo has been added to FCOB I've been wondering how to scale post-echo DPS in comparison to pre-echo. I think the math is more complicated than just adding a flat 15% to your pre-echo DPS, because I've run content with and without echo (with a similar crit rate) and it just doesn't seem to scale that way.
The closest example I can think of off the top of my head that supports this is the piercing damage buff dragoons give bards, the true value of which is theorized to be around 8% instead of the 10% value given in the tooltip.
Can someone give me a more accurate way to compare post and pre echo dps?