Daniel - thanks for promptly responding. It would take me some time to grasp all you have posted in that thread and especially to relate various adjectives (although funny but English not being my first language, you probably have any idea what I mean) to real world shooting experience. All that aside, should my takeaway from that thread be this statement of yours:
"For Canon, how I would put it is this: ETTR then ITTR (ISO to the right), avoid the +1/3 ISO (125, 250, 500, etc.), but the -1/3 ISO (160, 320, etc.) are fine and don't go over 1600 (on most Canons) -- use negative EC instead."