During our BC stay, our DTD buses shared with YC;BWI;Swan;Dolphin. Coming home (I time it), it took 12 minuted from DTD (the stop near Earl of Sandwich) to the 1st stop; it took appr 20 minutes to wind through the parking lots & drop people off at their stops (S/D/YC) are first, then BC, then BWI. S & D each have their own stop.
There are alot of stops from DTD back to BC. There are all the stops as pp, and there is a stop at Blizzard Beach if it is open. Also, if it is the end of the driver's shift there is the driver change at Pleasure Island. Stops are relatively quick though. Give yourself plenty of time if you have ADRs.