I will soon be installing 2 MP2 2x120 in parallel and a cerbo gx along with a few other components. I intend to use the generator start stop function on relay 1 in the cerbo and am contemplating using the relay from the cerbo in series with the aux input on the master mp2 in conjunction with an assistant using flag to ignore ac input to provide generator cooldown before shutting down. MP2 master Aux relay output would be controlled by the assistant to start and stop the generator based on the mp2 aux input value being switched by the cerbo relay. My question is...would I need to load the assistant on both the master and slave mp2's or would the slave unit simply follow the master in regards to the ac input switching on and off as the assistant specifies state? Hope that makes sense.