I sometimes tire of the perfection of the Stratus and yearn for a little more warmth. I have the RCAs and i just ordered a pair of Ken-Rads. We'll see. I gave up on the flagship headphones and added a pair of HD650s, which I like almost as much as my K701s and sometimes more when i am in a romantic mood. But they aren't broken in, yet. I was thinking about trying a silver cable to make them a bit more neutral, but these experiments often go wrong.
Good luck with your new setup.