San Yuan, San He - Is there any comparison?

Is there any comparison at all between San Yuan Feng shui and San He Feng Shui? Each has it uses and it is more important to know how to use it rather than to claim that San Yuan Feng Shui is better than San He Feng Shui and vise versa.

It is claimed that San Yuan is the ONLY school that takes time dimension into consideration and it places great importance in energy changes between periods. On the contrary, anything that is remotely connected to Feng Shui have to take in the time dimension, not only San Yuan Feng Shui. In order to be effective, practitioners need to be able to determine what has happened, what is happening and what will happen and when. Without the timing built-in into the Feng Shui School, what is the point of implementing Feng Shui? How effective can the Feng Shui be? San He Feng Shui has existed way back even before San Yuan Feng Shui were born. Can we really say that San Yuan is the only school with time dimension?

Placing great importance to changing of energy of different period simply means that you need to change your property feng shui whenever the period or energy changes. Is it really necessary? It is even practical? It only means more money for the San Yuan practitioner.

Ba Zhai seems to be related to San He Feng Shui. How this comes about is a mystery. Ba Zhai is probably the black sheep that San Yuan practitioners (or perhaps, Xuan Kong practitioner who thinks they are San Yuan practitioners) are trying to disown. San He feng Shui is never about East and West groups and no such thing as permanent good or bad directions. Every directions can be used. It is how we can use it to our advantage.

Then there is the classic arguments of using a pie-chart and the grid chart and comparisons of how a San Yuan and a San He school makes use of them. Regardless of schools, a pie-chart is to determine direction, a grid-chart is to determine location. Period. Both charts are used and it is a matter of how you use it.

It is mentioned that San He uses low landform and water features to tap on energies and San He uses the construction time to determine the "Period" of a property. This only reflects ones ignorance and lack of understanding of the various schools methodology in order to come up with such a statement.