Somewhere in this thread, a person asked if Diamondizing a Gold Crown would make the GC play better. In my experience, the answer is yes. Fourteen or fifteen years ago, there was a thread to that effect. A guy named RealKingCobra, who was, and may still be, a well-known table mechanic, discussed the process at length. I followed his posts closely because I wanted to learn to work on pool tables. I used to be in the cabinet business, so I already had all the tools and the skills needed to Diamondize my early 1960's Gold Crown I. Using RKC's numbers, I changed the pocket angle and the bevel of the sub-rails at the pockets. That improved my table's ease of play especially for shooting hard into the pockets straight down the rail or from a low angle from the rail. The number of balls that rattled in the jaws and spit back out of the pockets was greatly reduced. Unfortunately, I did add a thicker facing to the cushion going into the pockets to reduce the width to 4 3/4 inches. Next time I recover the table, I will go back to 5-inch pockets.