Balbillus Method:
According to Robert Schmidt, the procedure of Balbillus is similar to the 129 year system, except that the periods are reduced according to a proportion of the distance the planet is from its exaltation degree. The only option to be considered here is the type of calendar. Schmidt suggests that the texts imply use of a solar year, so this is the default.
In many other time lord systems, an ideal Egyptian year is used so this is provided as a possible option for purposes of research.
