Any benefit to cutting holes in hood underneath scoop?

Have you seen how the factory holes are sized and located? I think they are about 4" or 4 1/8" in diameter. And there is a rubber piece that slips over the edge of the holes. Maybe someone makes replacements. Or I have seen where someone has split a small diameter piece or rubber hose and slipped it over the edge of the sheetmetal all the way around. Either may help keep out some water by acting like a dam.