We were there during one of the busiest weeks in November recently. I had booked part of my group in for an ADR (9 people) ahead of time, but could not get ANYTHING for the remaining group of 6. I did not want to eat at 10:15!!
On the day that I wanted to dine there, I just called the restaurant directly and asked if they could seat a party of 6 of at 6:30. I was told NO PROBLEM, they took my info and I showed up.