You know, I think this is a matter of degree (and preference). I don't usually have my own fics Brit-picked, although I do run a fair number of things by my Brit friend. And honestly, I'm sure that anything really glaring would've been caught by whitecotton. I'm not one for making my fics 'Brit perfect', but I do make an effort because I realize the HP universe resides in the U.K. I don't, though, and readers will just have to accept that if they see one slip through. I've enlisted Sestra's expertise for you.