Thanks for the answer but not really for me then as I'm not really a Grado fan but wouldn't have minded to try one out for a couple of months at the price including a cable I could have used for something else afterwards ... if it was long enough for me (15ft).
Good luck with the sale though, sharp price for this top pair of cans with the right cable upgrade if you ask me. A Silver Dragon would have been a disaster in my opinion, but a Black Dragon is just what I think these cans need. (I did hear them one afternoon together with a PS1000 and RS2)