Dont ask, just do it. It works! This is more complicated than you think. There is lots to be learned by doing this.
Sebastian
Well I'm not questioning if it works or not I just don't want to develop a bad habit of wanting more air once contractions start. If I use the balloon and practice that technique daily I'm not sure how "adjusted" I'll get to wanting more air after contractions. With the balloon you get more air. Underwater you don't. I just don't want to develop a bad habit that may make it harder in the long run.