Thanks. Is there anything I am missing from a more detailed perspective? In case I am asked more in depth questions.
There's a bunch more detail to it.
To go gently you can add that an already-associated Munchkin session will not automatically switch between multiple records, even if the data in a form post would suggest that a new record be created/located based on the compound dedupe key. But one Munchkin session isn't same as one Marketo record. Every unique device + browser + cookie store = one Munchkin session.
Agree with Greg.
But are you an agency? Do you have an agency agreement with Marketo that would allow multiple instances that you manage?