I was so close from ordering before launch at the special price of $350 offered by Fang. Had I known it was going to be the only "good batch" I would have definitely ordered, driver cut out or not. I don't think they all had that cut out problem. I just don't understand why Fang retuned them after so much acclaim.
I think the most I've gone wearing the HE-500 or the LCD-2 was maybe 8 hours? I usually average 3 to 5 on a daily basis. Sometimes I go a few days without listening to music or logging on here, but lately that hasn't happened.