When running sims for my character, I am showing a 400ish dps loss using a 390 Variable Intensity Gigavolt Oscillating Reactor compared to a 355 darkmoon deck fathoms on my feral druid. When investigating it, the buff overview of the simulation shows the gigavolt’s buff as “Gain 0 crit every 2 seconds capping at 0 crit.”
When testing on the dummy with the VIGOR I get between 14-15k dps, with 14.5 being average.
When testing on the dummy with the Darkmoon Deck Fathoms I get between 13.7-14.5k dps, with 14k being average.
Just looking at the two it would be clear that VIGOR is an upgrade without testing it. +91 agility, +5% crit at max stacks. So I am assuming there is a bug reading it as 0 crit.