from my experience, if im truly LD, and i know i am... I can easily do any of these RCs and fail them.. but if I try one and expect the result to be a pass.. it will.. the only reality check that I think is 100 percent accurate is holding your nose and breathing.. and the reason I believe this is is because you still have conscious control over your breathing during LD, and you consciously know that you are still breathing even though you are holding your nose. RC's like putting your finger through something will fail or pass, based on your expectation and I Have proven this to myself during LD.

Try holding your nose and breathing next time, and you should know for sure.