But combining and learning as you mention is welcome and free for anyone wanting researches .
I very much agree with that.
Any valid system out there should fit well and nice with other valid systems out there at least partially... As all of this is suppose to point is to how we functions, only situation when that can't happen is when one of the systems doesn't work.
In this specific case, if we look in traditional chart structure is usually evaluated by the leading stem in the month branch(for non special charts,anyway).
In some places by Month Commander/DHS, but that would often be similar or even the same.
At the same time we have the idea in Mang Pai that whatever is in the month has a Image of being large. We view it as stronger when evaluating gang strength or when evaluating damage etc.
End result - whatever has fundamental/big role in someones life would be often seen in the month in both.
Of course, there are exceptions(special charts etc.) but the general idea exists in both.
As if it didn't exist it both, would be sad, considering we can see it in life.
In traditional there would be a lot that comes out of that, as "real gods", "fake gods" and a lot of other stuff, so there may be differences from then on, but that first obvious step seems basically the same.
So I don't see why we wouldn't combine them. Its the same implications in both places.