  ::Thank you very much!  (The fact that your explanation exactly matches my opinion is of absolutely no hindrance, either!) ::But more seriously, your explanation very nicely fills the gaps in my knowledge, and also happens to address my discomfort with the other pages. In other words, I had my doubts, but didn't have the knowledge/evidence to support them, so your explanation is very useful. So, may I further bother you to look at those other pages and, if necessary, adjust them as appropriate? Many thanks,   