I am not sure what you mean, once you run the pack all defult config files will genarate as the mod authors intended. I have supplied one modified config that disbles an item to fix a crash. There are also no ID clashes, I may include a config for Applied Energistics 2 to reduce the spawning of skystone meteors if possible to reduce lag. As far as I could tell all mods are balenced but I could tweak mob spawn rates.
Other than this I will add configs when needed or requested for balenceing, but I need feedback to know what people think is unbalenced.