I do not think it is a lack of courage that keeps the CD from transition, and indeed I do not see CDs as a lesser form of (I.e. more tolerable) transsexualism, but rather a separate and similar arrangement. As previously mentioned, and what I too believe, to be CD is to be both genders, that is in stark contrast of the TS state of being only one. I suppose a sentence I recently wrote to my grandmother illustrates that, "I qualify as a 'transsexual', which is to say the only "male" thing about me is my body and my name." That is not at all the definition of a 'greater form' of CD.
So consequently I do not think either side has more or less courage really. At times I cannot fathom the determination and willpower a CD must possess to keep their sanity.
Whatever the case may be though, my 'choice' wasn't one of courage... To use the analogy we've used before: My house had caught on fire again and I had ran out of water to douse the flames... Do I stay and burn or do I run and hope. That's desperation, not courage. ... In transitioning do I persevere or do I return to that burning house? It might seem like I'm determined and courageous but what choice do I have? Press on... or what? Die? There is no going back.