I have an everflex roof on my '88 4 seater. It is starting to show sign of age. I was talking to Kevin Vernon at Tudors a while ago and he suggested that a mohair roof would be quieter at speed as they don't balloon up as much. I would assume that they are not as affected by temp either. One of the problems I have is that if the roof in on the car and the weather turns cold, the vinyl gets so stiff that its pretty difficult to get off - so if a crisp winters day presents, I am stuck with the roof on.
