Greg,

Blind spot: When was the last time you actually saw something through those back windows from the driver's seat? Me thinks that those windows are cosmetic or for your dog to look out (mine have many nose prints on them :)) As you can see from my sig, I've been driving mine for 20 years, and I don't think I've ever looked out those while driving. It's easier to see the same things with my mirrors.

Fabric durability: The CanBack is made from SunBrella, this has been made from Haartz Stayfast. The Stayfast is a thicker, more durable, convertible-specific fabric. Just ask Gohawks how durable and quiet it is. It's his rig that's pictured.