Hi Guys
Yes -John Lindal here in Mich did this some 15 years ago on his winning 18 sq LCD .
a C F top section mast on alum lower --epoxied in -
John brought it out of storage and raced a few years back --the CF comptip still like new .
Ian L his son is in San Diego and you might reach John through CRAM -Contacts -
http://www.websitemagic.com/cram/ hope that helps
Carl R