We tried for a ADR's at 180 days out on both of our trips this year - September and December - we were not able to get reservations either time. I really find it hard to believe that this place is that booked for both lunch and dinner. I guess we will have a better chance of getting in when they more Le Cellier to "Signature Dining" and raise the price.
LeCellier has spots held back for dinner during Dec for the candlelight packages.



We travel to Disney just about every year and have never stressed over our meals ... it is a vacation after all! Gosh! I remember when you made your reservations the day you went to the park. At EPCOT you just walked up to a computer screen in the building behind Spaceship Earth and told the CM where you wanted to eat and when ... and back then you couldn't GIVE me a meal at LeCellier (apparentely it has improved since then?).

(LOL) in your situation I would not be too worried. A family of 3 and a family of 4 will take up the same table.
(yes, this is a Disney approved method as suggested in this thread and several others).

....Disney does approve of this method 