I worked them out myself.

I haven't found any sites with damage formulae. A few sites have the stat formulae, most FAQs have the Thievery, Dragon's Crest, and Frog Drop formulae, but not much else. That's why I started testing things myself, I though it was wierd that FFVII had been covered so well but a game as simple (it is pretty simple mechanics-wise) as FFIX hadn't been covered at all.

There will probably be a mechanics FAQ at GameFAQs in the not-too-distant future, since there's a guy there who's been doing what I do for a few years now. He knows a ton more than me but I don't know if or when he'll be making an FAQ about it, but he probably will at some point.