I have the cleanest cockpit deck / ER cover of any W42. (for the moment). Taco weather seal. 5/8" X 1 1/4" by 8'. Initially it looked too thick at 5/8" but it flattened down nicely. I would recommend 1" wide if you can find it. Glued it with BoatLife Lifeseal. Magically two packs worked perfectly with a foot left over. Don't tell Taco or they will repackage it in 6ft lengths.