This is a really interesting topic for me as I've been worrying about this for ages. THanks for bringing it up and replying.
I was prescribed ventolin a few years ago, allergies, stuff like that but I haven't used it for years. I play footy, run, badminton, etc. and there is no problem whatsoever. My peak flow however, does concern me, although I don't think it's under the 70% mark. Any views on whether I'll be ok at my class 1?
cheers