I slept on this overnight. As I said, this is what I do.
Let me propose a third option. It's sort of a hybrid between the two designs. Begin with the initial line running from the source to the trough that is located to the 'SE', as both initial designs show. From there, run a line to the 'SW' trough and a line to the 'NE' trough. Then, make a determination as to weather you want to run a line from the 'SW' trough to the 'NW' trough or run a line from the 'NE' trough to the 'NW' trough. Depending on which option you chose here, have the main line from the source split/make a 'T' to either side of the 'SE' trough so that each branch of the 'T' only feeds two of the four troughs. This will decrease the dependence of all four troughs on a single line and still allow you to make straight runs from one trough to another.