ruthieandjohn
Stumbling towards enlightenment
(Formerly known as kayandjohn.)
I have not. I do have the GH2, and it has become for me the best sounding of the Gradio on ear headphones, just barely edging out my RS2e. My guess is that it would not become better, with the G Cush, only because they are already so good. However, I think that @joseph69 tried them with G Cush and found that they improved, just as the GH1 did. Maybe he will let us know.