What!?! This man speaks blasphemy! Off to the gulag you go!
A remarkably accurate description; it's definitely not made for modern day, highly processed recordings. At the end of the day, however, if there were one Etymotic I'd have it'd be the ER4; I like that it punches the music in the face, spits on it, and gives it a scalping for good measure.
When did you get the GR10? Strangely, however, I actually prefer the ER4 to the GR10.