Thank you, that'll help a lot.
On a similar note do you think it would be possible (since we're self hosted) with our license to my understanding it allows us 1 Demo/Sandbox site. Would it be possible to basically copy our production use the sandbox license to keep it going do the upgrade on that and re-direct/point as needed?
I know this is kinda overkill but can't hurt to think of ways to minimize downtime or to ensure upgrades work properly before doing it in production.