If you'll look back at some of Art's postings, you'll see that he
consistently uses the word "efficiency" in a way that's contrary to the
universally accepted definition. His meaning of the word is more like
gain, but sometimes including communication effectiveness in some way.
In fishing through earlier postings, you'll also see that I implored him
many times to either use such words as they're universally understood,
or else explicitly define what he means by them. The reason for the
requests was to help him communicate what he was trying to say, rather
than leave a trail of misunderstanding and confusion. All my requests
did, however, was make him intensely angry with me, and no definitions
were given or change in usage made. I hope this recent round of requests
for clarification will have more effect than I was ever able to accomplish.

Roy Lewallen, W7EL