Just bought an open box PS500 from headphonebar here in Canada. Should be getting it this coming week. I actually owned these before but sold them when I got into Stax gear.
I'm currently splitting my headphone time between a markl modded D7000 and a lovely DIY V5 Magnum I got from another poster here (low profile walnut cups and sleeves).
I like the MD7000 a ton but, like all over ear headphones with leather pads, they make my ears sweat after around 20 minutes. that's why I bought the Magnums when they popped up on here for a good price. I wanted a higher end on-ear headphone.
But I can only really enjoy the Magnum sound with flat pads. Otherwise it's just too trebly for my ears. and there's zero soundstage width or depth with flats.
So, yeah, I'm heading back to the PS500. Decided to get these again since I know they deliver the tone I want and they have a pretty great soundstage with the L cush bowls. they're also really light. I'm looking forward to owning these again. They're the best Grados for my taste - and that includes the GS/PS1000 models.