Originally Posted by Artjrk
The sag issue may be coming from your straps. Nylon stretches while Polyester doesn't.
Thanks for the response Artjrk, Can you point me in the direction where I can research some good polyester straps or how to diy some polyester straps? Are Polyester straps generally lighter than nylon, because I noticed that these nylon straps are quite heavy for backpacking purposes...