Kathy, give me a call...
I use 3/8 PSRopes double braid, as do all my climbers....many others here, including Marc Chisholm, use similar stuff, or 5/16. I have a bunch, and will give you enough for 2-3 cords...... as well as turn you on to Ben at Dantrawl, my rope supplier. It works great, and who cares about burning it, at 20-25 cents a foot. I find this stuff doesnt burn much anyhow, perhaps as it is a tad bigger...I really like the size....It works equally well with a 4 wrap 3 braid,. 3x3, and 3x2.