Since there is no simulator and MrRobot is formulation based instead, it would be great to have access or knowledge about the rotation on which this formulation is based.
For retail we can access the rotation priority details in the simulator and we can’t have such knowledge in classic.
Let me know which spec you are interested in and I’m happy to share with you how I’m doing the calculations.
In general for classic, “rotations” don’t involve very many abilities. This is why we are able to use a mathematical model for classic. A mage, for example, is really just going to cast frostbolt the whole fight.