I have a Kelty Noah 9. This tarp hangs in a diamond. I have the guy lines that came with it on the ridge and the two main side tie downs. Then I have mason line whoopies on the ends to close it up really tight. I'll see if I can put it up this weekend and get some pics. Ohhhhh I may have a pic already, I'll have to do some checking.
I'm a member of PETA!!!!
Braided nylon mason line has a BS of ca. 150 to 170 lb, so should be adequate for guy lines and probably ridgelines in many cases.
It has always been my private conviction that any man who pits his intelligence against a fish and loses has it coming.
Yes, go to a kite supplier for braided Dacron(tm) = polyester line. Per weight it is 30-50% the strength of dyneema /spectra. It doesn't stretch and doesn't absorb water.
We could go on and on about minimal UV resistance, probably not included in 150lb test line available for $.025 /ft = $.08 / meter.
"Mason's line" could be about anything, the reason there are different reports about it. Let's wake up to the fact that it is not made to be load-bearing. That it might bear any weight is incidental to its use in construction.