Here is an idea, just an idea mind you. Go to Deltanet, Flight Ops Merger Headquarters and in the top left click on the submit feedback HERE and type out your questions:
Just make sure you note where the question is coming from, such as: This moron on airlinepilotcentralforums.com/major/any-latest-greatest-about-delta on page 4211 said... so I wanted to know...
BUT, I'd read all 6 of the other phases just to make sure the question was not asked. Such as I was wondering why the CA has to do the shutdown check with me because many are very distracted with other pertinent things at that point and the checklist can be very clumsy. But, they explained why.
Or why do the NWA FA's use a "call if not ready" procedure for takeoff? Well, thats answered too, plus the ongoing issue now created with the DAL procedure of call when ready.
Just doing my part.