How many people can be seated for a Hibachi reservation (can't remember if it is 10 or 12)? How far in advance were you able to book for an entire side? (yes, I know normally you book the day of, but we are hoping to book for a large group).
It you’re a member you may try to get your butler to arrange a booking in advance. Other than that I believe it’s the day of.
For nonmembers it's day of, and guests need to go to the restaurant at 3 pm to make a reservation. Go early, as it will fill up by 3:15 (or at least all the seatings after 6).