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ka43 said...
Talk to windsurfers about carbon masts, it happens. A knock, dropped, not enough wetting out, bad batch, bad luck etc etc.
Thousands of masts out there, percentage is low. Paddles are the same.
+1
As for failure due to cyclic fatigue of carbon/composite material, I say this is rubbish. Carbon fibre has infinite life as opposed to Aluminium. Alu paddles will fail with certainty after a while (alu windsurfing booms keep breaking partly due to fatigue). Carbon fibre used in airplanes and bikes for that same reason and more.
IMO, most failures are due to:
- poor quality control (if any in some factories

, always conflict of interest for a factory doing its own quality control)
- a knock, dropped etc (very much doubt wearing a ring or two would do anything to the paddle)
Interesting video below (Trek bikes, back when they were made in he US...):