ali c is right.
it is technique but also big part is psychology. psychology separates the winners.
i done a few p.e. projects on trials and techniques etc, used computer programs for figuring out force produced by muscles speed etc.
and there ain't much difference between power generated from me (bad technique) and power generated from tunni. most of time get the sternum of body up to same level but not the bike, so technique is key.
watch videos of yourself compare to others visualize etc,
but technique can only take u so far, after that it is psychology, if you believe you can do summit you ARE more likely to do it than if u are unsure.
look at the article that TRA wrote a while ago about psycology, very good reading. cant find link though, had summit about a pink dragon in it lol
i never thought p.e. would come in useful again, anyways hope this helps