Alex,
Thanks for the information.
To the best of my knowledge, my mixers are functioning the same as the day they were new. The faders on both my mixers feel identical and both are 3 or 4 years old. There was a very noticeable difference with the faders on the chrome edition. I appreciate that A&H may make improvements to hardware over time. I was curious to know if there was any official word on these improvements, not only to faders but processing power and sound quality as well. Things like this might factor into a decision to upgrade to the newer versions.