Cheers for the photos Charles. I've been looking at the Wedge since it came out. The top opening has stopped me buying one. We get a lot of rain here in Scotland, and horizontal sleet and snow in winter. Have you used it in rainy conditions, and has the top opening been an issue?
I think the vestibule might vanish during the night in the conditions i would like to use the Wedge. Pitched tail into the wind, i would worry about the wind getting under the vestibule, and acting as a sail.