I've been wondering... it's possible to remove crafting recipes for items (or perhaps the items themselves aswell) by using Minetweaker right?
if so, would it be possible to, for example, remove all the crafting recipes for all the types of copper except the one type of copper you want to use, and by doing that, the game would only use that single type of copper for all the recipes.
for example, your machines could create thermal expansion copper, but if you compress it into a block, you could get a Forestry copper block, and if you uncraft it you'll get IC2 copper ingots back, which is really frustrating.
the best would ofcourse be if there'd be a mod that could simply disable any other type of resource except the one type you want to use, but I've been mentioning this for a few months now so I kind of have given up on it and am looking in perhaps different ways to do this.