there was something on the disboards about making reservations for something at 190 days out. what was this for? was it restaurants? and what made you eligible to take advantage of this?
Like PP stated, you make your ADRs 180 days out from your arrival date. The +10 is there so you can make all of your ADRs for the duration of your stay during one phone call instead of having to call back every day. This is available for people staying at a WDW Resort.