I am replacing the guttering on a early 20th centrury home. Question is aluminum 1/2 round on K style? (I've found a source for heavy weight ALUMINUM, seemless, in a variety of colors, in the 1/2 round.) Asthetic-wise the 1/2 is true to restoration, but some K-style(OG) installers are telling me that the 1/2 round will splash over and back(eventually rotting the facia). Anyone have any experience with 1/2 round???