Originally Posted by
pizzaguy
I've always heard and believed that the tension on the top when it is up is good for it. I also won't put mine down unless it is DRY, as I dont want it to dry without being under tension, for fear of shrinkage.
The is no pressure on the system no matter if it is down or up, so I see no issues there.
What he said, plus less wrinkles and it keeps bird poop off your seats.