Hello.
Have you found or have reason to believe there are different forms of OBE? I believe there are different forms of OBE. I'm not sure what the differences are. It may be a matter of different densities of nonphysical body, or the kind or type or amount of matter projected.
I've projected before by focusing on one thing, and my nonphysical self would seem rather flimsy or like something that is rather two-dimensional. But when projecting by relaxing into sleep or something like this, it is usally more dense and heavy, and physical like. The other way seems more like a kind of tangible illusion, while the heavy one is somewhat almost physical-like.
Please input on this, even something small.