Olon97

Use the existing sims to generate 4-5 uptime lookup tables (crit vs. uptime) for given popular weapon speeds, rather than attempting to derive functions perhaps? 20 reference points in realistic crit ranges with a forced average on in-between points would be good enough.

Many times when you have a higher order system like this, it's simply easier to lookup a points on a measured curve than figure out the precise formula that drive the function itself.

The point of any simulation is never to perfectly predict future outcomes (nearly impossible whenever you have random elements), but rather to model it closely enough that you can make informed decisions that are likely to yield good real world outcomes.