yeah, don't worry too much about missing out the odd capitalization or so - that is why each analysis goes through 2 gp checks, after all.
I completely hear you on the changing too much vs not changing enough issue. not saying this is necessarily the best way--in fact I've caught some flak for doing so haha--but what I do is change whatever sticks out to me as odd, and mark the more preferential ones as such, or give alternatives where I can. I think the test focuses on more objective changes though, so it might help to bear that in mind when doing it.
no, I haven't :( i don't think i'm a good enough player to do so, plus i can never manage to stick with one mon / team for any length of time. and now i'm tier-hopping all over the place too, LOL. i'll just stick with lurking around and helping better people :p