Have a new Diamond 8' professional, and am getting some corner pocket ball rattle, more I guess than I think their should be. I ordered the pockets at 4 3/4", and balls seemed to drop great for the first few days, but now seem to be rattling in the corner pockets more than they should be. I did reset the rail torque the first week, as when I checked them after the installer left, they were running about 8 1/2 lb on average. I first went to 11 lbs, and now have them at 12 1/2 lb. The banks, and ball rebound off the rails seems much livelier now, seemed dead at first, but I seem to be rattling the balls in the corner pockets more. Quite honestly though, it more than likely is just that I am being a little sloppy in my shooting. When I go to meet friends and play on a Valley table, my corner pocket shots just seem to drop. Shots at home hit with follow, and a more moderate hit or less, will most always drop, but cut shots with any draw or more firm hit will rattle, unless hit very precise. I'm sure the answer is to just shoot better, but I was just wondering.