yikes! if i owned a billiards table, i would never fuck on it. i'm not entirely sure the quality or cost of your pool table.... or even if you like to play regularly, but that a pretty expensive fuck surface to fix. it messes up leveling, the housing where the legs are screwed in making it loose and wobbly, separates the rubber from the rail, and if nothing else, even chalk ruins the felt by getting into it... can you imagine the body fluids? i guess if its just a thing that you don't care much at all about, then go for it!