Peter A Goldsbury
the reading of the kanbun characters in the Kojiki is not an exact science. However, the reading masa-katsu-a-katsu-kachi-haya-hi is the preferred form in all the commentaries that I possess.
Dear Peter, in Abe Seiseki's dojo in Suita City, Osaka, there is a calligraphy scroll by Morihei Ueshiba with these characters. Abe sensei, in his explanation, invariably pronounces the characters individually as "katsu-haya-hi" with the intepretation, "To overcome, you must be as fast as light".
Gernot Hassenpflug in Tokyo