thank you for reading my post.I have been a Guttershield business owner for four years and I can tell you honestly that I am a gutter management authority.I have personally serviced 7 major brands (3 types because company(s) took over two weeks to respond to clogged warranty calls).The fact is most all products can clog but the real problem is getting the warranty work done in a timely manner or getting them to do it at all!If that wasn't enough,the installation should never be one that has to affix the product to the roof decking.That is 80's obsolete nonsense!The smart do their homework!