Thanks for the added info BMatthews, but I was always told that 'pitch stability' was a function of balance, not wing/tail angular difference.
Other than that, and not actually having used any of the 'on-line calculators' (I do mostly scale stuff, so most of the designs I draw are already fixed so far as layout, areas etc are concerned) I have to agree with you. My biggest beef is the interchangeability of 'incidence' and 'AOA' as used by modellers, even though the two things are totally different. Which was what I was trying to illuminate in the discussion, without much success.
Evan.