We were at SSR this year, and could walk over to DTD. We used the resort transfer area at DTD quite often this time and were very pleased at how well they were running.
There were two CM's at all times radioing back to base to let them know what resort buses were needed.
I.E., going to MK, you could take a bus to GF or CR and walk over. For Epcot, take BW. For DHS, take BW, and then take the water taxi over. For A/K, take use AKL., etc.
The beauty of that is it gets complicated by having to rely on getting from parks to the resorts and back to the parks again, because you would have to keep in mind when the parks close and when the buses stop running. By leaving from DTD and going from resorts to parks and back to resorts, buses will continue to run to the resorts until all the parks are closed.
Does that make sense???? Good luck!