0lafe

Iirc, in a cycle of item movements, item filters will only allow the amount of stacks of items within the filter to be transfered. So if you filter 4 ores,...

That's different if you have nbt enabled. If you only have 1 nickel ore in the filter, it will only handle 1 stack per cycle

Yes, it isn't really going to help you here for sorting ores like that. Sfm or eio is best for filtering more specific items like that