Don't get sucked into kidding yourself that they have improved after "burn in".
Personally I don't believe but even if you do be aware that it is very easy to convince yourself of what you want to be true.
Have a search for burn in on here if you want to see a never ending dispute!
Anyway. Another thought.
I recently auditioned all the Beyers with a friend.
We ended up preferring the Sennheiser 600 by miles.
A billy bargain in our opinion.
It's open so that's out.
How about making a virtue if necessity and trying IEM's instead?