If you book the room be prepared to pay the full price if the other rooms are booked. A CP discount can not be applied to a room that is already booked and if you release that room to try to get it back into the pool so it might be discounted it may or may not happen (it's not instant). Book a room your comfortable paying for (regular price) and if you luck into one being open with a CP/CM discount then you can cancel the original and rebook the new room. If having a room is a must book it now and fingers crossed one will be open at a later date w/ discount.