The Significance of Line Positions in a Hexagram

I think that when it comes to the interpretation of line positions, there are clearly certain significant general rules. Yang is, on the whole, better than Yin; getting a solid line is usually more promising than getting a broken line. However, the lines of the hexagrams are affected by both their position on the hexagram (ie. a yin line in number 2 is more likely to be positive than a yin line in number 3 or 5), and the nature of the lines in other positions (ie. a yin line in number 2 is more likely to be positive if it is surrounded by strong yang lines; or if there is a solid yang line in number 5).

The overall positions of the lines seems to have more influence than the trigrams that compose the hexagram, when it comes to determining if any given line is auspicious or not; but the trigrams do still exert their influence. The overall image they create can affect the line concepts; and certain trigrams (like Kan, which symbolizes the lunar Moon force even though most English versions of the I Ching call it "Water"), tend to have stronger influences than others (Kan also represents "a pit", and so its seen as a serious malefic force unless its very well-dignified).