Originally Posted by
findark
If you want to maximize the chances of clearing the upgrade you want to split the reservation, but you will have to deal with the possibility of flying in different cabins if you don't all clear.
My wife and I often have to split reservations for biz reasons so we are constantly flying in different cabins. A single upgrade is always easier than two and way easier than three. I would say when we both split (and we have pretty similar status) this definitely increases the chance of CPU. Of course you know who gets the E seat....