The GS1Ki's are now added to the list of my headphones after continuously burning them in night/day.
They now have at lest 40+hrs on them and IMO have totally transformed! When I first heard them, I didn't like them, at all!
Good thing I gave them the listening/burn-in time that I did…these headphones are just beautiful! I must say though, when I first heard them the bass was terrible... terrible so that I didn't think they would change as much as they have. The bass and extension of the bass is phenomenal, as is the clarity/detail/sound-stage and depth. These are very relaxing headphones to listen too, and at the same time very engaging IMO. These are definitely keepers!!!
They just keep getting better and better, I have read they need at least 200 hours to really settle in. Who really knows, I do know that mine sound better than when I first got them. My other headphone's have not gotten any head time since I acquired these. I wouldn't have believed it even if someone had told me. They are addicting headphones. Glad you are enjoying them!