Fast Idea
There are some cautionary guidelines for these HDR debates and I would ask that they are stuck too. No, I am not suggesting that anyone has overstepped them... yet. :lol:
I am always wary of any mechanical contrivance which seeks to replicate what we are inherently supposed to be able to do. In this instance, Astral Travelling. I don't own a dishwasher as I have hands and a kitchen sink, but don't flog that example to death please as I do own a car. There is a difference between convenience and being in charge of day to day tasks that you are easily capable of.
The point that I am flailing around to make is that I am with Starlord on this one, Kira as well. OOBE, or Out Of Body Experiences are extremely well documented events, though their is no scientific affirmation to credibly support this contention. What we do have are cultures past and present that record these phenomena, even hold them central to their way of life as the Aborigines of Australia do. Walkabout is a cultural cornerpost for them, as it provides the ability to enter the dreamstate and visit the Earth, people they once loved and have passed on and the Gods of their culture. Across the World we see the North-American Indians performing roughly the same rituals within a similar religious and cultural ethos.
So, the phenomena is too widespread in time and culture to be casually disregarded and the Gibb's HDR is a parasite, I feel, bleeding cash of those who do not see that they can achieve organically that which he proffers mechanically.
I have never consciously remembered an Astral event in my life, though I have odd feelings about some events that I have suffered pre-cognitive awareness about. Which cautions me about dismissing this type of belief. As such I have high regard for Starlord's belief here, as he can see what I cannot cognitively debunk.
I don't know if the HDR works as a machine in its own right. I suspect that it is a placebo that engenders faith in the ability to travel consciously outside the body, though that is only suspicion on my behalf and should not be taken literally. I think that you may get just a much success from using a rock, a typewriter, or an old sock as long as you believe that it is your key.
Maybe that is what the HDR is, a big and expensive key... rocks are cheaper.