I hate to break the news to you, but separating traffic is far easier and quicker than telling them about each other, many years of bitter experience have shown this to be true...whether or not you like to hear it.
From a bugsmasher pilots point of view I would agree.
To add to the argument however, the scenario I described in G a few posts back would have been far better for all concerned if it was E, so is there a case for more E to lower levels in the busier regional areas? At least then we would all have been positively told where to go
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