Recently theres been a serious lack in DPS on my part. I havn't done any major changes to anything but i've lost near 500 dps. I havn't done any major changes, i do need to go back in a glyph though, i replaced siphon life glyph with Voidwalker cause i was trying the VW tank setup. =P (curiosity)
I highly doubt that it's going to amount to a 500 dps loss though.
in that patchwerk kill, as pets only an infernal is listed in your damage dealt split. considering the amount of dps a raid buffed felhunter or succubus can deliver, i assume you had your pet on passive during the fight. could that have been the reason for the dps loss?