OK, normally in a branched valley network the branches will collect into a larger main before leaving the roof. But what if the opposite occurs? How to flash a single valley that is forced to divide downstream into 2 valleys because of an obstructing roofline? In order to build on an addition as efficiently as possible on the site, I was forced to place the new construction in the corner of the existing L-shaped gabled-roof house where the valley would normally exit. With crickets in place and Wind & Water Seal down I am ready to add the galvanized flashing but can't seem to figure out how to divide the waterflow without at least one of the directions going under the flashing. Any help?