I have tried methods before, but I have never had success. I can never seem to get relaxed enough to do it. I have awakened to the frozen state several times and once I felt vibrations. I know I had an OBE once, but I couldn't "see".
Anyway, last night I tried your technique. And it was really hard for me to focus because the fan I have is really loud. So I couldn't get the hang of it before falling alseep. I figured must try when I am awaking because it's easy to get into a trance state. (I am notorious for waking several times a night)
So last night at about 4am I woke up and was in that half awake half asleep phase. The first thought that popped in my head was "place yourself in the triangle". I focused on the SSSS sound and my astral ears. Suddenly everything became focused. I could feel my third eye vibrating and "swishing" if that makes sense? Like a strong resonation. Maybe that's that disorientation you mentioned. I felt a small amount of vertigo. Then the thought "IT's going to happen!!!!" popped in my head and I felt this rush of excitement and it died. LOL
But I have to say, for my first time that this method has worked better than any I have tried. I'm gonna keep trying!!
