I finished the sanding with 400 grade wet & dry, cleaned the dust from the grain with white spirit and then gave the whole hull a light spray with Craft Mount. The Craft Mount holds the Fibre glass securely whilst wetting out. On the outside of the hull the fibre glass is layed at 45 degrees whilst inside it's layed perpendicular to the hull. I do this as I would imagine it produces an overall stiffer hull.