i use flat waxed monocord- it lies flat, its strong, and because its waxed it holds inplace better while making tight wraps on large clumps of bucktail (or synthetics) i've tried the floss thing and imo it frayed to much
Yeah its great stuff. I use it for a of things, recently sewed up a tear in an old backpack with it while away from home. I use the waxed floss, tougher to use but always felt it would hold up better.