Bob-
I'd say that pretty well covers it, especially answers b, c, and e. Maude Fontenoy broke the mast on her circumnavigation earlier this year, but I believe her boat was using more traditional aluminum spars. All spars can break... better designed and implemented ones tend to break less.
EDIT: maud's boat did have a CF mast..

I just checked on her website.
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Sailingdog
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Telstar 28
New England
You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
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