Larry,
I just want to let you know how much my Tow Boat US captains in Jacksonville appreciate your waterproof charts. We have used your waterproof charts on each of our tow boats since early 2005. These charts are easy to use and have helped on many occasions to coordinate the location of a disabled vessel when the owners do not have a clear picture of where they are located.
My company will continue to use these charts on all of our tow boats as they are easy to maintain and use in heavy weather conditions and at night.