Any suggestions for installing The Edge Vent in a valley?

Here are some tips for flashing The Edge Vent when installed in a valley.

An Air Vent Seminar attendee in the Detroit area shared this tip: Take the water protective shingle underlayment that is installed on top of The Edge Vent and bring it over the edge of the vent and past so it can act as a flashing. The side of The Edge Vent, regardless of its size, is just like a wall and since all walls need to be flashed, so does The Edge Vent.