Originally Posted by
Theck
The "shifting queue" refers to SotR usage, which should be off-GCD and independent of rotational constraints.
My best guess is that the reason for the difference in SimC is the non-haste-affected GCD for SS and L90 talents. CS is almost a 3-second cooldown at 45.59% haste (3.09s), so something like CS-SS-X might be happening. The combined duration of the 1.03-second CS GCD and the full 1.5-second SS GCD gives you 2.53 seconds, leaving 0.56 seconds remaining on CS's cooldown. However, once you add reaction time and/or latency into that, it would almost certainly be below 0.5 seconds, triggering the delay condition on J.
If it's happening for both SS and LH/ES, that could explain having one or two "missing" J casts, on average. That should disappear if simming with ptr=1, though I don't remember whether SimC v530-6 has those changes or not. v530-7 definitely should. Alternatively, you could try changing the delay condition on Judgment from 0.5 seconds to something smaller, i.e. ~0.35 seconds.