So the result of stage one was good. The new mast with smooth prebend was near perfect and enabled me to achieve the bend I needed to suit the BG sails luff curve with no hard points. I also evolved my set up, off a comment made to me to get the depth of the main 50% back and sheet further out. Albeit conditions were on flat water the setup looks fantastic and the boat performed well. So the side of the jib boom was 60mm from the centre of the mast and the main side boom 15mm out from the centre of the main post.
It was hard to tell the real performance at Gosport due to the shifty wind but I feel I have moved in the right direction. Sunday will see me at Datchet and next week I will work on the hull.