I sometimes think in real life that I'm dreaming even after 2-3 reality checks to mentally prepare myself for the moment when an RC will actually fail, or the situation is too damn strange.What if I can read a text clearly like I did numerous times, what if the hands are normal when I look at them, what if my fuzzy logic will just accept me still breathing even if I pinch my nose the same way it accepts other bizarre situations.When doing an RC I always ask myself how I got there, what day is it, can I stop what I'm doing currently.I do this until it's a habit for me to question my dreams.
You get to a sort of paradox, someone new to LD reads in some book that in a dream your hands always look weird, and his dreams will convey this expectation.Next time he will see in dreams his weird hands, but why are the hands more weird than any of the things he saw before?He will reach lucidity if he made a habit of questioning the reality of his surroundings every time he looks at his hands, he sort of trained himself to enter that alert state of mind when he saw his hands.
But someone may think "why can't my hands be normal in a dream?".Now that he doubts even that madness of his dreams, maybe his hands will start looking normal in some occasions. Well what can he do?Is he doomed to never being able to use RCs to lucid dreams because he doubts that RCs can't fail, because it is unreliable to think that dreams are unreliable?
I've read some time about anchoring in NLP "Anchors are stimuli that call forth states of mind - thoughts and emotions. For example, touching a knuckle of the left hand could be an anchor. Some anchors are involuntary. So the smell of bread may take you back to your childhood. A tune may remind you of a certain person. A touch can bring back memories and the past states. These anchors work automatically and you may not be aware of the triggers."More on
NLP Anchoring , just one of the first sites that popped now when I googled.
Let's take the looking at your hands RC. According to the site above constant RC will form a reflex triggered by the sight of your hands, no matter how distorted or real they are.The stimuli is visual, and the state of mind is that of alertness, questioning, awareness.
So yes, thinking you are dreaming and doing all you can to be more lucid in real life even if the hands tell you you are not in a dream is a good way of transitioning that behaviour in your dreams next time you see your hands.But these are just my 2 cents on this all RC matter.