I just checked in a change that shifts the old way of doing mitigation work to the new "experimental" code with a weight/multiplier on the options panel. This was necessary when I found out that I had some significant flaws in the legacy
code that only revealed themselves recently.
In the old code, Mitigation was just a score that did not have a direct correlation to DPS mitigated or anything like that.
In the new code, Mitigation now is average DPS mitigated from the damage options that are set.
Feel free to comment once the new release comes out.