Clive's iSonic 101 delaminated completely on the bottom, so we made a small incision along the rails almost the full length of the board, lifted the lid and filled it with a litre of resin. Sandbagged it, filled the seams with Epifill and sanded it down. Two coats of flowcoat and its good as new - but the proof of the pudding is in sailing it. Cross your fingers, boys an girls...