I believe that scanning and dipping is used to activate the information. In the future when actavation becomes second nature it may surface more naturally, and you may not have to scan and dip to activate some information. An example is if you were to PR a dictionary then the information might suface on a day to day basis, without having to scan or dip the dictionary.
But this is only a hypothsis on my part because I have not had to much sucess as of yet, because I have been doing this for only a few days...
Oh and I believe that scanning and dipping is used to help memorize information.
[This message has been edited by Menscandidus (edited June 16, 2002).]