Not entirely sure it's not an "ortho thing" either. My LCD-3s are from the release in Nov 2011. Sent them back to be updated to the latest driver versions in 2012 (June-ish) and I've never had any issues with them (nor my LCD2R1 or LCD2R2). And two good friends have both had HE-6 channel imbalance issues over the past 2 years.
Don't worry, they're customer service is top notch. They turned my LCD-3s (when sent back for the update) in 1 day.
Then the beyer T1s have got drivers going down left and right it seems...and they're traditional dynamic drivers. So my point....none really...going back to downloading iOS7 on all my iDevices.