While Courts of Appeal across the country recognize the doctrine of equitable mootness, there are substantial differences in approach: some circuits apply the doctrine liberally, even in cases that are arguably not complex; some circuits all but call for elimination of the doctrine. Dueling in the Lone Star State may, now, be strictly forbiddena"but come watch two of the nation's top appellate advocates face off in a courtroom showdown to settle long-standing feuds about equitable mootness.