I don't think you gonna find any objective research in this Field, you just need to have some faith. Btw you seem to have some very confusing beliefs regarding lucid dreaming vs AP/OBE. For me the only real difference between them is the density of your surroundings and the level your awareness. I also have a lot of experiences(~1000), but only when you experience 2+ hours types of events, only then you are starting to see how deep the rabbit hole really is. So this "simple" tutorial I gave you, actually can give you those 2+ hours experience. When I have more free time I can give you one of mine more advanced exercise, but it can come with unpredictable consequences.