I've seen more alu bars fail due to excess clamp force or scoring where bar tape has been cut than carbon bars.
Inknowwww I knowwwwwwws, I’m just wildly speculating - although as professed previously I’ve had a number of carbon bars fail at the clamp well below recommended torque with a manufacturer matching stem.
@Dick started
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I've seen more alu bars fail due to excess clamp force or scoring where bar tape has been cut than carbon bars.