I always plan this way: I usually pick a park per day or 2 parks, one for morning and one for evening, since we like to hop. Then I make one sit down meal ADR per day accordingly. We usually do mostly breakfast. That way if we get to MK for breakfast and it is a nuthouse, we can head elsewhere after we eat. In the last 5 years, I have had to cancel only 1 reservation. I planned our trip that starts on Monday a month ago, and was able to get in where we wanted for the most part. The only night we had trouble was for the halloween party, but we were able to get dinner at the Turf Club early...which works.
Some problems with hooking ADRs to resort reservation numbers is:
1. Resort reservations can change.....for this trip, I had a good AP rate at All Star Movies for our last four nights...however, a better deal came out and I rebooked with that and ended up with 2 reservation numbers. With DVC, I booked our first 2 nights and waitlisted the second two....again, I ended up with 2 reservation numbers. Sometimes waitlists come in months after the original booking, and they rebook the whole thing. Then people would lose their ADRs. I would have lost mine twice!

2. Locals and offsite guests would not be able to reserve at all.
I would be happy to CC guarantee all of my reservations with a 24-hour cancellation if it would help solve these problems.