Beatbuddy Aeros Slave/Master plus Midi Maestro

I’m trying to decide which Midi connsction sequence to use. Beatbuddy Aeros as Slave or Master?
Plus I am working my Midi Maestro into the equation so if there are any diagrammatic wiring diagrams online that’d help.

The midi signal would go Maestro -> Beatbuddy -> Aeros. Audio signal would be Aeros -> Beatbuddy (if you’re wanting to chain them)

Ok maestro midi out to BB midi in. Then BB midi out to Aeros midi in.

Not sure about the audio chaining. I’d think it will be easier to balance volumes using separate audio outputs.