That's why I got two packs.
I found they worked very well. They are not even near to scale, so I ended up splitting my battlemat in two. Half was a high level view, with the coastline and the ships. Maneuvering and such was done there.
The other half of the map was usual character scale, for such things as boarding actions.
I've looked at the game, it strikes me as poorly worded, and would have been much improved with assumptions of a grid for movement purposes. I am considering reworking the game for stripped down naval combat rules.