- The hammock body,
- The noseeum netting, and
- The over-cover
There is a left and right side of each zipper; so its really important to think through the placement (i.e. a "right" zipper half won't zip to another "right" half).
I didn't worry about the zippers being weathershields (i.e. waterproof). I figured that neither the noseeum nor the uncoated 1.1 ounce nylon I used for the over-cover were even remotely waterproof; so why worry about the zipper.
The road goes ever on and on Down from the door where it began. Now far ahead the Road has gone, And I must follow, if I can, Pursuing it with weary feet, Until it joins some larger way, Where many paths and errands meet. And whither then? I cannot say.
-Frodo Baggins, The Fellowship of the Ring
i guess i don't understand why you can't shorten a 2-way separating. If you take length off the top and add a new stop why would that affect the way the zipper works? 2 sliders start at the bottom and one goes up to close the zipper, then the bottom one goes up to open it again from the bottom toward the top leaving it closed between the 2 sliders. why does it matter what is above the top slider?
I also see no reason why all size #5 2 way sep zips of the same style wouldn't be interchangeable (assuming all from same manufacturer).
I honestly don't like the idea of a 2-way zip. I wish i could just have 1000 140" #3 coil 1 way sep zips with 3 sliders made. that would be perfect for what i want to do.
Perhaps i will, hmm...
I was thinking about the same issues, here is a thread I started on the subject
I finally decided that I would use a 96" zipper on each side and velcro on the ends. I am going to have a 1' or 1.5' fabric cap on each end, so the velcro doesn't have to pass through the gather, as well as allowing me to use the 8 foot zippers on either side. I plan on using this part number from Quest Outfitters: #5195.
My guess is that Clark probably has this feature patented, which is why you don't see a full zip out weather shield.
a 2way, like on a jacket, has 2 sliders that are back to back, one closes as you zip it up and the other opens as you zip it up. this is what allows you to have your jacket zipped in the middle but open near the neck and belly. The same is true of sleeping bags, you can close the zip to the shoulder than open the foot a little. I just don't see why they couldn't be shortened. I am pretty sure i have done it but it would have been almost 4 years ago so i can't be sure i know what i am talking about (like i ever can)