What they are saying is that when you go to book your ADRs, do the most difficult to get farther out during your stay, and first when you are booking. Then move to the easier ADRs to get closer to your arrival day. Of course, there are only a handful of places that must be reserved at 180. So if you are staying for 7 days on site, you can book at 187 days out for those. So pick BoG for day 5 or 6, and you shouldn't have any problems. The vast majority of restaurants can be reserved at less than 3 or 4 months, so you shouldn't have any issues with the rest of your ADRs.