Taking a closer look in a couple of areas, it looks like you may have some issues where the outside trim edges are not very good in some areas, there are a few spots around the outer boundary where things look a little strange.





One issue is that you've got some little segments in there that are of pretty small size in comparsion to the main surface, like this one:



That may be causing some problems with trimming such a large surface using much smaller curves like that.. You may need to ensure that the cutting curves touch each other more precisely before using them to trim with.

how was the outer trim of the hull created, could you possibly post the cutting objects that were used to make the outside outline of the final hull?

- Michael