As a modpack creator, you probably had to deal with the problem of having multiple types of the same ore (e.g. Copper) in your pack. The easiest solution for that, is to, well, leave only one and not have them all fill your inventory and storage systems. But all mods require this ore and the amount that's generated in the world normally is the amount you NEED, otherwise it's going to look really nerfed. I brought a simple solution for this problem. So, every time you mine an ore (or pick an ingot) it'll be converted to one type. For example, mining Copper from Thermal Expansion and Copper from Forestry now will result in having 2 Copper ore blocks from Thermal Expansion. It's simple to use, and also 100% configurable, so you can specify what blocks/items will be converted.
Here's the example of how configuration works:
What ore needs to be converted? - Copper!
What ore do you want to see after conversion? - The one from Thermal Foundation!
Well, do you want to exclude something? - Yeah, Tinkers' Construct adds gravel ore, I would like to exclude that, because it's different after all.