Bill - you can see from that angle better , when looking along the open slot the line where tank ends inside the hul. It abruptly ends and ruins the whole effect of open floodholes. Another thing is the slats / im planning on adding them / need some kind of support-otherwise you end up with the deck hunging in thin air.
Edit:
Ive made couple of drawings in paint to demonstrate better what i had in mind.
TBC...