Protruding Pocket nails rarely, if ever affect every ball in a set during one or a few sessions on the suspected table. Usually a suspect table has only one or a few pocket nails protruding enough to scratch the balls to a significant visible effect. This effect would build over time to more and more balls in a set if there is repetitious play on the suspect table. The balls need to come in at a certain angle and hit that nail just so to cause the damage.Did you check your other balls. If it is pocket metal they should be much worse scratches on the other 15 balls
After the first session on a suspect table, you would normally see only one or a few balls affected, depending on how many nails are protruding - which is usually only one or a few nails; it usually builds to include more balls in the set as sessions increase on the table before realizing the issue.
If the cue ball is the first one affected, which is the ball most often cleaned after a session- consider oneself lucky to catch the issue before ruining an entire set - more reason to inspect tables on initial sessions when bringing your own $300 to $400 ball sets.
Usually the CB is not the first ball affected bc it goes into the pockets the least ( hopefully) and it does not go into the pockets at the speeds of most object ball strikes.
Duramith technology claims have nothing to do with protruding nails- 40 year Duramith claims are based on properly maintained playing conditions.
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