It does, but metallurgy is huge compared to substratum. It's the small size that I like. The reason I asked for worldgen is more or less because I want to know if I have to reset the map for it!
Edit: Unfortunately Substratum is totally not compatible with TiCo. The ores are only mineable with a diamond level pickaxe, which you can only make (in TiCo) with casts, and I needed it to make the casts. Further more they don't smelt in the smeltery so I can't even turn them into blocks or casts anyway. I removed it and I gave up looking for aluminum for now, but if anyone has a good tip it's still welcome! I also tried to add mekanism but that was too much for my pack and minecraft didn't load up properly anymore with the amount of RAM I could give it, so I'm storing that for later!