RE: summit-copperhead
Dave, Matt and I hunt out of four of these when he comes down (we've gotan array of like 20differentmodels at our disposalfor that week, but the Copperheads are what we hang in ourbest spots)...Like he said, they're awesome. Comfortable as all get out; bar none the best seat I've ever seen on a fixed-position.
I don't think you'll need any sort of ratchet strap with these; if you hang them like Summit suggests, they're absolutely rock solid.