Yeah, quicklinks. If I use a diameter rope too thick for quicklinks, I will permanently attach a ring or large chain link to the loop fixture so that the quicklink can be used.

Woven Kevlar is great for wick, but has little strength as a rope. In fact, the manufacturers assume that kevlar "rope" is going to be used as a seal in stove, fireplace, and furnace doors, and that no linear stress at all will be put on it.

As noted earlier here by someone else, kevlar rope, thick or thin, breaks where it's bent or flexed most often. In a Meteor, that would be where the center cord meets the monkeyfist knot.

You want a center cord that's easy on the hands (another reason not to use kevlar there). Braided nylon is great: it won't rot or fade, and has incredible strength. But nylon will melt and eventually burn from exposure to fire, so you have to protect it somehow.

One way to do so is to separate the nyon center cord from the monkeyfist (or turkshead or whatever) by a length of steel or brass chain. Heavy ball chain is probably best, but stainless aircraft cable would work, too. Use what's handy and whatever material you have the tools for.

FWIW, Another means of connecting the torch heads and the center rope might be the spiral metal ends of bungee cords -- not the hooky parts which would have to be clipped off (or bent into a smooth circle), just the spiral bit.

If you do lots of wraps and moves where the fire contacts the center rope, you'll need to cover some of the nylon cord with Nomex or Kevlar tubing. The idea here is to protect the nylon from direct contact with fire. Be careful not to get fuel on the center part or tubing, or you'll have no place to hold the damn thing.

Samson spot cord is just cotton rope. Burns and chars like any other cotton. The starch is usually washed out or allowed to wear out through use, unless you prefer riata-style Mexican roping, which uses very stiff, braided leather rope preferred by vaqueros. Most Norte cowboys prefer softer, washed rope. These are cowboy issues, though, and don't really matter for fire play.