Sorry About Any Confusion

As early readers of my first post this morning may have guessed, I'm having my recurring eye problem and relied too much on automatic spell check, resulting in several sentences saying the opposite of what was clearly intended.   Sorry for that.  I can't find my fresnel lens,  cleaning is the enemy of efficiency when it's someone as unaccustomed to tidiness as I am.  I may find other corrections as I look back later in the day.