The question would be why bother with 3rd-party resolvers in that case?
NB I have a slightly different setup - I run Unbound locally and route DNS requests through the 'suitable machine' on VPS over VPN established by my LAN router. I considered moving the resolver there but didn't yet found the setup what would be usable for me when I would be out of my LAN. Opening my resolver to the whole world is the way to be a part of the bot relays for DDoS attacks, so this is out of question.