To minimize notch depth through a top-plate, can I split a vertical vent line into two smaller lines and then recombine on the other side of the top-plate? For instance, 2in DWV line-> 2"x1.5"x1.5" wye-> 1pc 1.5" street 45-> 2pcs 1.5" DWV parallel through notched top-plate (properly strapped...
