I am redoing my motor cover off my 77 Johnson. It has stress cracks on the corners that I was going to repair before I repainted it. I was going to grind the cracks out and lay in some mat with epoxy resin. I was thinking about using some stuff from West Marine called G/Flex 650. It sounded like it had more flexability which I thought might be in order at these corners. I was wondering if I was on the right track and if any body might have and other ideas or pointers.