Starting the input(s) of an activity here is standard.
So no need for a comment here.

It's the NWayInputer (further down) that's the exception to the rule..
I already commented in it's start() and stop() to indicate it why it _wasn't_ starting/stopping any inputs.
NWayInput is basically just a container for it's inputs that is driven by the activity down stream e.g. SelectNWay.