Remove the "Fax Flag", "Opt-in" and "Swap Flag" from the UI (and make advanced in the report designer).
Rename "Mail Flag" to "Physical Mail Flag"
Make the "Physical Mail Flag" a toggle of "Unsubscribed/Subscribed"
Make the "Email Flag" a drop down of "Unsubscribed", "Subscribed", "Pending", "Cleaned" and "Archived" to match mailchimp.
Unsubscribed = 0
Subscribed = 1
Others need numbers ... feel free to assign
When mailchimp is not enabled, this should just be a toggle of "Unsubscribed/Subscribed"
Add a system setting to choose the defaults for "Email Flag" and "Physical Mail Flag"
The options for both should only include "Subscribed" and "Unsubscribed" regardless of whether mailchimp is enabled
The defaults for new sign-up profiles should be "Subscribed" however the default for existing (upgrades) should be "Unsubscribed"