Hi Dao, I think overall they describe the line positions quite well, although I disagree with some.
The most interesting assignment for me is the time assignment throughout the year, for example the first line is November/December, second line is January/February etc. For time assignment, I mostly use the Branch and specific interactions of the Branches. For example, Zi = December, Chou = January etc. just like in other fields of Chinese Metaphysics.