i'm experimenting with the whole upside down thing too... in the past i've done everything whilst upside down, so i'd wash and rinse upside down, then shake my head around a little to seperate the curls and then apply whatever styling lotion i was using to soaking wet hair, scrunch a little with a towel and diffuse almost all the way whilst still upside down and only when its nearly dry would i flip my hair back. The underneath curls would look kind of strange but the curls around the top and front of my head would totally make up for it, i'd get hair like Grace out of Will and Grace.. awesome height and big thick curls! i think the curls around the top / front loved not being disturbed. I haven't had the time or patience to do this for a little while!