I have an Oxford Shell outfitted with a Piantedosi deck mounted rowwing and a self bailer. I have been in water rough enough to fill the cockpit which could not be removed even though I have a self bailer. I'm thinking of trying to reduce the volume of the cockpit by custom building small decks/platforms within the cockpit around the rowwing. The goal is to reduce volume and create more positive floatation. Any tried this or have any thoughts?