When I first started having LD's I never once did a RC but now when I have them it's the first thing that I always try to do, it seems even if you realize you might be dreaming the RC proves it and gains you full lucidity if you didn't already have it or were unaware of having it, the only down side to doing an RC is that sometimes it fails and then you may of thought you were dreaming but since the RC failed you you start to think you're not, so now I'm starting to try to think of a secomd quick RC check that I can do on top of that incase the first one fails.

I still suggest you do a quick RC to make it more clear because with out the RC sometimes you accept certain elements of your dream as actual reality and this could cause you do lose lucidity but with the RC you know it's a dream for sure.