I was told that they do not pre-assign until you check in. However, I have noticed a few instances where we checked in and our cards have been printed and ready. I thought that was strange since on other occasions, they spend quite a bit of time looking for a room. I don't know if it's already pre-assigned that day or days before.
But on one occasion, the CM was explaining something to me about the computer system (don't really remember why

), but he turned it around and showed me the screen and there was a room already noted on my account. Now, when he turned it back, he had asked if I was fine with room xxx, but that was not the one noted. Then when I said, is there anything on a higher floor, he quoted that room that I saw on the account.

Don't really know what was happening there. It just didn't bother me enough for me to say anything (and plus, I didn't know whether I was suppose to see it - even though he showed it to me).
And there didn't seem to be any difference between checking in early or late. So, I don't really think they have any procedure. I do think that they try to look at the request and possible pre assign some and not others.
Sorry, I don't think I was of any help.
