Hi Brian.

Your Boat looks great, even with the planking. Don`t see a problem here(edit: ok the plank texture is a bit distorted in one direction.
Maybe try to avoid texture-stretching by using different tiling factors for x and y or u and w).
I`m really admiring your uv-work. Something that has always scared me a bit.
I hope Michael could do some Magic here;-)

By the way, i would use a fresnel effect(ior) on all materials.
That is one reason why all the unbiased renders look so real (and the lightning is the other reason of course).

Greetings
Dirk