Alright, done.
Now, how do I tell COFHCore to do NOTHING at all, just provide what RfTools needs?
(I'm seeing more and more, these "core" mods with functionality defaulting to doing something. Whether it's making snow stack up by default, or Applecore/hunger overhaul changing the hunger mechanics, and people realizing that 1, the only user-exposed controls for Applecore are in HO, and 2, HO cannot give you unchanged vanilla hunger mechanics to start modification from, or "here's a better oregen system". I don't want CofhCore to duplicate vanilla ore gen by default, I want it to IGNORE oregen by default.
In fairness, it has been many versions since I was annoyed by CofhCore, perhaps it now does nothing out of the box unless you tell it to?)