Unless you really, really, need it to be conforming, then dynamic cloth is by far the best way to go for a cape. You won't need morphs, and you won't need rigging. In fact the Poser hi-res cloth plane makes a perfectly serviceable cape.

If I were faced with having to make a conforming cape, after pocketing the enormous fee I'd almost certainly demand*, I'd probably make it like a tail - lots of segments, with some EasyPose.

• :-)

Once again I have to swap insurance details with Teyon. :) Great minds not only think alike, they also post simultaneously. :)