Could you elaborate on the reason(s) you have decided not to keep the Bushmills?
To be quite honest, I just wanted to hear them being they where a vented Grado model. I own the 80i's 325is's and the RS1i's, and I am very satisfied with each of the differences in these three headphones. So I would say that my curiosity at the time got the best of me. When I saw the second batch being released I bought a pair. BTW, I knew about the first batch very early that morning, but didn't bother to buy them, but then when I saw how fast they sold out, I didn't pass the opportunity with the second batch, I actually bought the second to last pair sold. I listened to them for about 8hrs, and they sounded really nice right out of the box. I repackaged them and will most probably sell them or hold on to them for a while and see if they become a collectors edition, I don't know.