I continue to be amazed by how different our ears must be. I owned the GS1000i for quite some time, and sold it because I found it too bright in direct comparison to my PS1000, which I don't find bright at all. Much happier with the flagship. I had a similar problem with the RS1i, which I also eventually sold in favor of the RS2i, which I like better and find to be warmer.
On another topic for the crew, I've been away from this thread for some time, and I wonder if anyone has formed an opinion on the PS1000 vs the PS500. In other words, is there any real cause to consider it the sonic little brother of the PS1000? I've been auditioning the PS500 for a month or so and am still trying to figure that one out.
I actually found the GS1000 and PS1000 basically the same headphone with a slight preference for the latter due to slightly less piercing treble.