The idea behind this technique reminds me another technique I have used for a little while :
http://www.dreamviews.com/induction-...b-newbies.html
My way of using it, if I remember well, was this :
1) I set a vibrating alarm watch to wake me up after a certain amount of sleep.
2) when the watch wakes me up I do a short WBTB during which I put an ear plug in my ear (or pillow speaker or whatever I can hear) linked to a small MP3 player I have attached to my hand in a way it is very easy to press the play button.
In the mp3 player is recorded a message with my own voice that says something like "this is a successful reality check, stay focus on the incoming vibes".
just after that I start another vibrating device (gymboss) that will vibrate every 25 min for exemple.
3)I just let myself fall asleep.
4) each time I feel the gymboss vibrating I press the mp3 player button
-if the message is clear and normal I am probably awake, I just let myself fall back asleep.
-if the message is different, or strange, I am probably in a FA and I can start a LD.