We doubt that cream skimmers could capture even a majority of the volume on any route owing to the limited amount of contestable volume in the U.S. and perhaps other countries.
There is not doubt regarding cream skimmers.
mnli hypothesis: There is not doubt regarding cream skimmers. premise: We doubt that cream skimmers could capture even a majority of the volume on any route owing to the limited amount of contestable volume in the U.S. and perhaps other countries.