I don't know if this has been brought up but if we do go to 1 clan 2x/week wars and 1 clan 1x/week war you would not need much break between war 1 and 2 in the first clan. For example:
Clan 1:
War 1 - Starts Mon @8AM - Ends Wed @8AM
War 2 - Starts Wed @9AM - Ends Fri @9AM
Clan 2:
War 3 - Starts Fri @ 7PM - Ends Sun @7PM
That gives 10 hours to switch between wars 2 and 3 and then 13 hours to switch between wars 3 and 1.
The current war should end around 8am Eastern Saturday morning. No use in waiting until Monday morning to start the next rotation.
FBG1
War 1 - start 8pm Saturday / end 8pm Monday
War 2 - start 9pm Monday / end 9pm Wednesday
FBG2
War 3 - start 8am Thursday / end 8am Saturday