Carbon fiber durability

[Mark Schecter]

Hi, all.

Thinking about changing to a carbon fiber tuning lever, I'm wondering 
about some concerns raised in the bicycle industry about CF's 
vulnerability to impact damage. Specifically, when a CF tube is dinged 
or crimped, its structural integrity, i.e. its strength and durability, 
are compromised, and it's considered unrepairable.  Of course, a bicycle 
crash probably involves a lot higher forces than banging your tuning 
hammer against a plate strut, but still, does anybody have any idea 
whether CF hammers are vulnerable to dings, crushing, fatigue, or other 
kinds of damage or forces likely to be sustained in our work? Has 
anybody had any experience with the CF hammer they are using being 
damaged? Thanks.

-Mark Schecter