Sure! no problemo!, just sleep on the 500AUD p5, and get a new ultrasone!! easy!! lol... easier said then done!!! but I would love to!! though I really do love the p5, they're like a hot yet really bitchy girlfriend T_T
My next purchase WILL BE an ultrasone RAWR!!!, but thats a long long time from now... i'll live for now with the p5 and Aiaiai tracks for portable use.
500 is rough but knowing that electromics/cars are very expensive in Australia not exactly earth shattering. I wonder if sticking a couple of books together to get the headband stretching out would work for the discomfort?
That's what I would do. Chances are high you can bend them, or mod them in a way to make them less miserable. I wouldn't live with an uncomfortable headphone, and I'm a grado fan!