Great videos Sid, is there any situation in flight that would demand Xfer pumps off and Prime on? I can't think of any. With that in mind maybe a CAD failure at first power up could (my opinion only) explain why the pumps were left in this config.
Does the MMEL allow for departure with CAD failure or just continued flight?
Can I also ask what the RFM procedure is for a Red Low Fuel, and what you would do, check Xfer pumps?
FS