Recently, Biten YASUMOTO, by comparing these theories in terms of philology, has identified it as the one in Yasugi which is the closest to the border between Shimane and Tottori Prefectures.
また、最近では安本美典がこれら諸説を文献学的に比較し、島根/鳥取県境に最も近い安来のものを比定している。