Happy with my order, its already saved my crabbing ship a few times! Love the amount of info there is on the discord server explaining how to safely use these packs. Warping to the bookmarks at 100km is a perfect way to add a layer of security if you are worried others might have the same pack. Since all the perchs are so far out its highly unlikely that anyone will land close enough to you to do anything.
Subnote: the book marker that came through was a super nice person and was fun to chat with