I could not find exactly what I was looking for. I use a cuben tarp and I am looking for either a reflective or yellow guyline that is possible of holding ~75-100lbs of force. I do not need no tangle cord. I coil my cord up each time I take down the tarp in the same sequence. Never had a tangle.
I'm currently using orange dynaglide but want something much smaller and lighter.
I would like it to be able to hold a knot so I can larks head it to my tarp and use the MSH for my stakes.