I just had a great Mothers Day with my new Clark NA and got a chance to really get a good look at it. I have not read any posts about the line of velcro from the last pocket towards the end of the hammock. My question to you all who have more experience with the Clark is what is it for? I can imagine making an underquilt to fit just that section, but I still have not seen or heard anyone else including Clarks web site talk about it. Sorry, I wish I had taken pictures. Any suggestions about what you use it for.