The 3 front canvas windows on my 270 Amberjack have become heavily oxidized / pitted beyond restoration and I'm making plans to replace the window material. The windows are only a few years old and despite regular maintenance didn't last as long as I'd like. Oddly, the rest of my other windows are in much better condition. To make the replacements last longer I'm considering specifying a polished sheet material vs. what I assume was just plain vinyl with low UV resistance. So far I see two options: O'Sea and Strataglass. Any thoughts on pros / cons of these materials? Is there something better? I'm looking at 30mm to have some flexibility in the windows especially since the helm window has a frowny zip that i regularly open, roll, and secure with a strap.