Stu, I have to disagree with you on this one. Boatyards are experts in the application of anti fouling paint but in general they don't have a clue about how it performs once it's in the water. What they know is what the sales rep told them or what they read in the sales brochure. They frequently will recommend the paint they got a pallet of for cheap, not what may be best suited to the local fouling conditions or the boater's needs. In the The Boatyard at Grand Marina's defense, they do push a couple of high quality paints, one being Trinidad and the other being Interlux Micron 66. But once those boats are splashed, the yard typically won't see them again for two or three years. How can they know how well the paint is working in the interim?Ask the yard, they know.