The Carbon stick uses different fittings than the alloy stick. The spreaders for the c-mast are more like winglets and use fairly simple adjuster arms using threaded rods with clevis/forks at each end. The upper diamonds attach to a threaded stainless tube (passes through the mast section) using standard stainless bolts (metric). At at low end the diamond (which are rod, not wire) pass into the mast and connect to a tensioning strap in the foot.
The shrouds attach at a dinghy-style "T-ball" fitting that then slots into the reciever embedded in the mast.