I never broke one of mine. They are the Carbon type...and have not heard of any failures on these. The original plastic ones did have a breakage issue. There is also an aluminum version that should be very solid indeed.
These units are available on Rick's Online store.
Mike,
You wouldn't call one breaking a "major issue". I have been considering them myself but at 260lbs, I'm not sold on the durability of them...especially after seeing one of your broken ones. I like the whole idea of them but in a distance race, that's one faliure that could cost a life.
