Has anyone used clear, impact-resistant resin to cast their own replacement portlights? Really bummed at how easily I broke one on my Beneteau 361 (very light point loading). Naturally I'm concerned about safety and durability in all conditions, especially off shore. I'm reluctant to take a risk casting my own. At the same time, I can't help but wonder whether casting the replacement with quality clear epoxy resin (maybe West Systems?) and making it more thick is actually less risky even though it's not backed by a major brand. Interested in others' experience!