I finished my horizontal fillets. I have discovered denatured alcohol --- smooth fillets with little effort. You rough out the fillets, let them cure for a few hours and while they are still malleable you rub them with a cloth (I'm using painter's canvass) soaked in rubbing alcohol --- presto perfectly smooth filets. While I waited I started working on the deck beams, lateral and longitudinal. I'm making some of the laterals out of left over 18 mm plywood. I finished the stern deck area and started the bow. The bow will be tougher as it needs to work with the deck hatch. Tomorrow.