Carbon Mast Gooeneck, bonds to back of mast and prevents the boom pin splitting the mast apart under high vang loads. No failiures to date, very light, strong and ready to fit.
Center of mast to center of boom pin = 40mm.
Max Pin diameter 8mm - could be sleeved to 6mm.
We have used both plexus and spa bond to bond to the mast and neither have failed although we would prefer to use Spa bond ( or similar epoxy adhesive ) simply for piece of mind. No laminating required.