I get it, hash table for membership and manual ordering. That's an option. From my experience; hashed sets are more expensive to set up, because of the slots; m

I get it, hash table for membership and manual ordering. That's an option. From my experience; hashed sets are more expensive to set up, because of the slots; making small repetitive sets less appealing. And manual ordering is not always an option. I tried adding hashing on top of slists, an array of slists basically; to get away from traversing the whole thing for large sets; but the results were disappointing, basically identical performance.