So far I haven’t been able to figure out why simc simulates icy propulsion as a bigger single target dps gain than we do. It would only have a lot of value if you were able to get another icy veins use during the fight - so how good it is will be highly variable. I think that Ice Bite is a better all around pick if you are looking at how much damage you can do a in a single target encounter. For mythic+ where you are looking at damage across the whole zone, icy propulsion is the way to go - and I’m pretty sure our simulator/optimizer agree with those assessments.
I’m going to stick by my guns here and say that Ice Bite is the better pick for single target damage.
We recently added an implementation for the Inscrutable Quantum Device in the simulator. I don’t think that data has made its way to the optimizer yet. That item can be good - but it’s also highly variable in some situations. If you post your snapshot id (use the help link above the gear table to create one) we can look at your particular case in our simulator.
Misfiring Centurion Controller looks really basic to me. My guess on the trinkets is that we have more robust handling of two on-use trinkets than simc, so using simc will tend to favor only one on-use trinket. I can’t figure out why they’d suggest quantum device over empyreal ordinance though - that seems suspect to me.
We’ll keep an eye on these things. The rankings always get at least one revision after blizzard messes with balance first week of raiding.