As RKC has and does point out, the slate on bar boxes is supported mostly by the rail caps causing the rails to eventually dip down out of square and letting the cushion height decrease causing ball hop and other problems. My question is, why haven't the manufacturers adressed this problem? Not counting Diamond, it seems it would be easy to build and design better slate supports for the Valley, Dynamo, and Global type tables. It would be a huge selling point as well. Any input? Thanks, just askin'.