The Gooseneck
These photos from a Santa Cruz 52, show how Buzz Ballenger (Ballenger Spars, Santa Cruz, CA.) routes the cunningham on a fairly big boat right through the reinforcement for the gooseneck so the cunningham helps hold the cunningham ring forward. Not visible, just below the bottom of the frame is a 5:1 block and tackle. The red and green lines just above the gooseneck are the reef tack lines for the slab or jiffy reefing system.