Cant speak to this year, and when they will or have released ADRs, but CRT is definitely not closed on party nights. When we went in 2016, we entered the park with out party ticket, had a 4pm CRT res, got dinner out of the way and then had the whole evening for our party. It was a great plan, and worked perfectly. That being said, have you set an alert on the Touring Plans reservation finder? That would save you the effort of checking constantly (though, for this trip, i STILL check obsessively, LOL). It will send you a text or email when a reservation within your preferred parameters opens up and you can click the link in the text to book it. Its super handy and has gotten us every single res we have needed due to booking after the 180 window. Give it a try, at least then you know someone is looking all the time, particularly during the middle of the night, which is when the majority of our alerts have come through.