sorry ive been off line for the last week , i built mine with out the plan set on paper as its a download to my computer ! i didnt have the dvd either ! but mine is now on the water . i made my gooseneck from a lump of scrap pine , drilled as per the mast/sail plan pic , my girlfreind has sewn a sail from ripstop nylon ( i supplied her with ) which was made to fit around the mast and boom , my first attempt was too steep , so a second gooseneck was fabricated , im using a plastic food pot for my rx/ battery thats in the deck between the keel box and the hull side which stands approx 19 mm from the deck , the boom passes the pot at 22mm from the deck at its closest point and tapers up to 82mm at its highest point . following advise from the glasgow & richmond club they recomend just using the central hole to position the mast , ive then blanked the other five off to prevent water ingress . this has so far been sucsessful !