We do a split stay almost every trip. If staying just the first night at Aof A, I would pack a single piece of luggage that contains everyone's items for that first stay. That way, you can leave the rest of the luggage closed up. The next morning call Luggage services at A of A and tell them you need your luggage transferred over to Beach Club. I always carry my own valuables including my IPad in my backpack. I typically tip the luggage guy $20 as we usually have 12-15 bags since we move food as well as luggage. Next, stop at the front desk and ask to be manually checked out of AOf A. (This may eliminate issues later). Then board a bus or hop in your car and go to your intended park. If you have pre checked into the Beach Club at some point you will get a text with your new room number. Once in your room, call Beach Club bell services and ask if your luggage has arrived from AOf A. Luggage usually doesn't arrive until after 4pm or so in our experience. We always tip the delivery person on this end too.