Knowing that, if it were me, I would hold on to reservation 1 for now and hope the other nights open up before you need to cancel reservations or loose points.

My reasoning, and opinions will vary, is that if no other nights open up for 80K and you want to combine the premium reservations with the standard you currently have, you could end up moving rooms several times in 6 nights. I presume the Conrad would help you out but there are no guarantees. Not that anyone wants to spend 3X the points for a nights stay, but this is a vacation. You also get a better room for the additional points, so that is some benefit. If no other standard rooms came available I would bounce Res 2 and 3 and enjoy the nicer room without having to move around like a nomad for the week.

If however you you want to move forward with canceling the double booked nights there is a chance once you cancel Res 1 the 216K night availability will post back in to inventory. Then you could re-book the single nights you need. Before doing that, I would call Hilton 800 and tell them you want to modify Res 1, i.e. drop the nights you don’t want. They should able to do that so you don’t risk loosing those 216K rates. If they say they can’t do that ask to be transferred directly to the hotel. They will do it.

We booked 9 days last Summer for 80K each night. When we began booking in March there were no 80K rooms. Nothing under 200K+. Within 60 days, checking daily, all 9 days opened up. Unless something has changed I feel you will have success getting all the days you need.

TD