I remember the bottom left tag from the first time I looked at some OG Jordan XII's I wanted to buy...the Playoffs (that I still have to this day)... most of the early silverbox SB dunks have the one on the bottom right...when I really started getting into sneakers and was checking them every day, like around 2004 or so...I became really used to the bottom right.
One day, the homie @danposite and I went up to one of these spots called VIM in Harlem, and I saw a pair I hadn't even know had re-released - Air More Uptempo 96's. At the time, I was wary of fakes - I checked the tag and was shocked to see a tag like the one in the middle left - I was flabbergasted. I put the shoes up and and thought 'man, when did VIM start selling FAKES?'
Took me a couple of days to realize that Nike just updates their tags from time to time. Most of the info remains consistent, but the fonts and formats will change.
Anyway...that's what I noticed. Anything for you?