If there was only one type of gutter, and every application had real similar trees, leaves and pollen, then we’d only need one kind of gutter guard. After 30 years in the gutter guard design and manufacturing business, it has shown us there are a lot of variables—in leaf and debris loads, in rain, snow and ice loads, as well as subtle variations in gutter designs. Heavy leaf load, pine needles and pollen, Heavy rain storms. We have a hard working guard for that.