I was able to partially complete my promise to revise the GI chapters. I've re-posted the first four to all the websites it's currently hosted on (Fanfiction.net, HPfandom, Adultfanfiction.net). There were a few minor changes here and there, and the addition of a bit of vital information but mostly it was fixing inconsistencies. Hopefully I can get more of it done and get the next new chapter out soon.
I've linked the FFN address because that's the totally age accessible site.