Have finished the upgrade of my first edition Centennial 1946 model. The rails looked great and the table has never played better. I installed new super speed rails and then 860HR cloth. Table is super fast and spot on in banks and running diamond to diamond for kicking purposes. Only fault that I have now, the table at one time had a ball return. I installed drop pockets back 20 years ago when I bought the table, and the ball return system was not with the table then. Problem I want to correct is , when shooting a ball slowly into the side pockets and the ball drops down, the bottom of the pocket rests on the aluminum side rail and the sound of the dropping ball resonates with a loud thump. Are there shallower or shorter pockets available to be used to stop the racket?