Well after the long wait I picked up my drysuit today. It looks great and I can't wait to take the class in January. I do have a question though, is there some reason why you can't add a "string" to the zipper like on a wetsuit so you can zip and unzip it yourself? I know you have to make sure the zipper is 100% closed but I'm just curious why some folks would use a nail in a tree/ post rather than a zipper extender.