A  "troll post" is a ad hominem attack and an effort to "side-track" a discussion into a mud-fight.  I'm not interested.  I call you "Don" because, with every post, you further evidence that, indeed, you are Don...that's Don R.  I did mistakenly call "dave" don.  Unfortunately, with the rather narrow window for editing, I missed realizing that in time to correct my error.