Brain,
Scanning your eyes down the page doesn't sound like rapid reading to me. Scanning your eyes down the page sounds more like superreading and dipping.
When to dip? Dip on a hunch. Don't worry about justifiying every time you dip. If what you dip into is not there let it go and continue to superread and dip and dip into sections you feel attracted to. Notice what you are feeling, and thinking when you feel inclined to dip.
Photoread4me
