IMHO...they are going to be right up there with the 325/RS2. It's been a long time since I listened to the RS2, but A/Bing them with my 325...the Bushmills are every bit as nice...better actually. Smoother, a little warmer, and bass to spare (for a Grado). They are very nice headphones and I definitely see something similar being added as a regular to the Grado lineup in the future.
This would make perfect since...the 325i is about $295......put wooden cups on them and they would be about $395.....seems about right imo.