In regards to all your problems with gutter clogging there is finally a product that actually works like it is advertised. The Hallett Gutter Cover is a solid piece of aluminum that slides under the first row of shingles and is attached to the outside edge of the gutter with a small clip provided, it works under all circumstances. I have personally installed it on over 200 homes with a 100% satisfaction rate not even one call back. All you have to do is make sure the gutter has a proper pitch of 1 inch every 30 feet and that the gutters and downspouts are cleaned of all debris. Once this is done and the Hallett Gutter Cover is installed you will be set for life.