Thanks for the information. Had I been sitting at home in front of a pc, I might have 'fully investigates' but sitting at NRT lounge and typing on an iPhone dissuaded me. I know a lot folks post questions rather than search, but it's your prerogative not to take the time to answer if it bothers you so much.
In this case, I appreciate all the good info. There is much more to it than I realized....
Thanks very much.
Good answer...seems the "light trolling" might get tossed around a bit much by some that take things a little too seriously.