Depends on Fazor or not... I would agree the LCD2 Non-Fazored lacks treble extension, but the fazored version corrects that issue IMO.
I had both non-fazored and fazored together and found the fazored one was better (although my fazored was also latest 2016 revision drivers, so that too.)
LCD2's problem is not only of unit variations perhaps, but also the sheer number of revisions they released, making it a headphone somewhat hard to comment conclusively on.