Are there any pre-made straps out there that do the same job as Slap Straps, but are made of polypropylene? The set up and loops are perfect, but I may need to get my local shoemaker to bar-tack my two lengths of 1" polypropylene into ladder loops ala Slap Straps. From there I'll hang double "O" rings on a carabineerer from a loop (both ends), and thread my Speer webbing through. I'm looking to get a bit more flexability for a perfect hang than my "eyeballing" hanging using a Speer 4-wrap is giving me.