My boat has two Quattro 24V/5000 units from 2009. They are installed to invert only, no charging. They are configured in parallel. There are three remote on/off switches around the boat that are each in parallel to both units. Each unit has its own DC source twin circuit breaker. Each unit has a single pole circuit breaker on the AC out Line between the unit and the parallel connection. My boat no longer has the high wattage consumers that would require parallel operation. I would prefer to have each unit operate in standalone mode so that I have two redundant duplicate inverters which will only be operated one unit at a time - never both. I have read the manual and I understand how to remove the RJ45 UTP cable between the two units and use the dip switches to reprogram back to standalone configuration. For the DC source twin circuit breakers I can buy an $18 lockout slide which allows only one unit at a time to have those breakers on. I'm assuming I can leave the remote on/off switches as they are - the inactive unit won't switch on with its DC source circuit breakers off. My question is on the AC out side. I can buy a toggle cover to prevent inadvertent switching of the AC out Line circuit breakers - but is it sufficient to switch off the single pole Line circuit breaker of the inactive unit? Is there any risk from having Neutral still in parallel? Is there some issue in my plan that I'm overlooking? Thanks in advance for your help.