Households on my system are created before contacts due to our data sources and workflow. So when I add a contact I need it to auto link to an existing household/account (which I've got working). HOWEVER NPSP also automatically creates a new household/account at the same time before the process I have links the contact.
Said another way, the contact will successfully link to an existing account but will also generate a new household.
I don't want this to happen because the created empty households are useless data and bloat.
e.g. I create a contact Aballa The Magnificent, and rather than ONLY linking, NPSP also creates The Magnificent Household.