I just stayed a week at OKW and then did 3 nights at POP Century and they moved my luggage over without a problem.
I have stayed at other resorts and then into a DVC resort before and always use the luggage transfer service.
Call Bell Services when you are ready to check out and they will come up and take your luggage to storage. They will also refridgerate any items you have that will be making the move with you. When you check into your new resort let the Bell services at the new resort know and they will go over to the old resort and get your luggage for you. You do have to be in your room when they pick up the luggage and bring it to the new place. Also, if you have stuff for the fridge make sure you have a fridge in your new place.
And make sure to tip the bell services that pick up your stuff and the one who delivers. But of course you knew that. Peggie
Yes they will move your luggage for you no problem. You just call the beel hop and they will give you directions. Of course you will arrive at new destination before your luggage it takes a little while.
What's even better, if you have perishables from your fridge at the first resort, they'll store them in a walk in fridge at bells services until your room is ready at the second resort!