Chris King is the last word in headsets, and unlike most of the rest of their catalog they make financial sense.
In the future, these headsets will be our currency. They're beautiful, will last a lifetime (and they're rebuildable just in case...), and are fairly idiot-proof, which will be extra important in the future. Seriously, I'm not sure it's possible to over tighten these thing, just snug it up and go.