New AC cap rules?

[KLS]

Everything is pretty obvious other than

NPCACFactor which is how much npc base ac gets divided by. Ex 2.25 npc ac = 1 player ac.

The thac rules are poorly named cause they used to do something else and I never changed them but they have to do with how big a factor attack and ac plays when there are successful mitigation and attack rolls. The higher the number the less possible range there are on reductions and increases from those rolls.