I did mine a few months ago and it came out OK. There is a big experience factor. Next one I do would be a lot better. On the corner, pull down hard like in the video. Chase any fold around the side and if you pull hard enough, you might not have a fold.
One big thing I messed up on is on the rear bow. Be sure, when you put on the top deck, that it overlaps the rear panel material. That means the staples and trim must be in the right place. The instructions led me to believe the staples are both lined up on the edge of the bow. Overlap to keep the rain out.
I assume you are using staples that won't rust. A Must !!!
Here is the link to a video I made when I was doing mine.
https://www.youtube.com/watch?v=yEa1...cz4R0&index=37