I am not 100% sure, but I believe it works like this.
If you are staying on site at 180 days from your first day, you can make up to 10 days worth of dinning reservations.
If you are staying off site you can make your ressies 180 days out, but if you were staying for 10 days, then you would have to call at 180 days for each day. You would only be able to make one ressie a day.
I think that is the way it works.
Mother of twin 9 year old girls
Dixie Landings 11/96 (honeymoon)
Dixie Landings/Cruise 12/2000
Riverside - 9/2006,
FQ - 11/2007, 9/2008, 9/2009
CSR 5/2010, AKL 5/2010 (split stay)