Contact Bill Vining (forum user) I think he has recently repaired a broken carbon A-cat mast. Or at least he can put you into contact with the people that know (and can help you out).
Otherwise going alu is not a bad option if you are not doing much racing at all.
Not that I want to introduce "the class name that may not be mentioned" here, but "the class that may not be mentioned" actually has a very lightweight true wingshape mast that is very inexpensive in retail compared to the big builder alu sections. For me here locally the difference is a factor of 3. That is saving ALOT of money. More info on this alu mast section "of the class that may not be mentioned" can be requested by contacting this company.
www.VectorWorkssail.comAt least a good modern sail can be had for this alu mast as development is ongoing. The development for the I-17 alu mast has all but stopped several years ago.
Wouter
