Just want to know IF I can do this;

- Domain A (7.0.3 Primary) ... with 3 poa's.
- Domain B (7.0.3 NEW Secondary).
- Promote Domain B to be new Primary.
- Upgrade the new Primary (Domain B) to 8.0.1.

Oops ... A few days later I have an issue and need to back out (probably won't happen, BUT, need a backout plan).

- So, can I now promote Domain A back to the Primary ... even though it is a 7.0.3 ?