Well I received my large table and swing down guide adapters for my CB4500 from @Patrick1.
Damn, I'm impressed! The fit and finish of the table is perfect. I'm actually shocked that the tolerances were so good considering it's a Chinese made casting that it fits. Call that a win for Patrick and the Chinese factory. It' great with the factory round needle plate and one of Patrick's own flat narrow needle plate. (a previous purchase) The swing down guide adapters and the recommended Chinese guide are also flawless. This will be a perfect "2nd" heavy stitcher, now I have a flatbed to go with the cylinder arm. Thanks Patrick!