That's called the honeymoon period. If you stopped using the LCD2 for a few weeks and went back to those headphones, you'd hear why you liked them in the first place. Just because what you have now is 'better' doesn't make your older cans suddenly bad.
That's a mistake people make here. They have a tendency of calling their old headphones crap, because they're in their honeymoon phase. It's illogical to believe a headphone you loved for so long is now just bad. Go back, let your ears and brain adjust, and you'll find that they're as good as you remembered.