I think most people would be better off trying the "Bellows Method" as described here:
www.youtube.com/watch?v=td6S3qCikG4
"Grandpa Cavendish" here does a good job describing correct cadence.
The way I see people describe "Breath Smoking" seems generally disjointed.
The only thing I do differently from "Bellows Method" is sometimes I will only move smoke in and out through the pipe (never releasing smoke out from your mouth).
To me, "Breath Smoking" means you keep your breathing and smoking absolutely 100% separated at all times and breathing clean air is what makes it so appealing, at the same time I must add the disclaimer that it is very wet, you will never finish smoking to the bottom of the bowl this way.
If you're a little less stringent about allowing smoke to waft past your nose then it is probably best just to copy Grandpa Cavendish.