The hull and deck construction is as follows:-
S-Glass Epoxy laminate with 20mm Airex C75-C95 core
Carbon longitudinal internal structural frame.
Frames and bulkheads have carbon capping on openings and rims.
The upgrades have been minimal ,carbon forestay and spreaders, sails as per usual, we had started initially with Symmetrical kites but went over to Asymmetrical and bow sprit which is removable.
Carbon mast out of New Zealand by NZ Rigging.