The nastiest idea I came up with for an All-Star run with more than eleven teams was to take between twenty and twenty-two of them, then divide them up into two groups, and start them from different places on different days. From this point on, it turns into a pair of races, and two TARs airing on different days. All Pit Stops are thirty-six hours and staggered to that so each squad is active while another is resting, to give Phil travel time. Once each group is down to five teams who are all starting to dream of Final Three, the clue sends them to the same airport at the same time --

-- wham. The groups (and shows) unite, and the Race is on again with ten teams who may be feeling just a little bit worn down.

Not exactly easy to coordinate, even with those extended Pit Stops, and for a run that long, you'd probably need a rule change or two -- say, first-half and second-half uses for the Yield and Fast Forward -- but just imagine their faces when they first saw each other...