It does not work this way. Most duels I saw from in duels server last under 30 seconds. If people are low skilled they only do block, attack, block, attack, until one player makes a mistake.
Once you put in feinting, kicking, hitslashing, chamber blocking, attack holding/chambering, plain old crazy mouse movement frenzy, jumping and what not, than the things become more unpredictable. Warband is that kind of game where you will never top your skill, if you play it long enough. CRPG just adds a lot more variables like different armor, diferent armor looms, diff. weapon looms, diff. stats, making it even more unpredictable.
Just because this video is so fitting:
http://www.youtube.com/watch?v=7Bs9bVjMaC8That's how it feels like to do a lot of fancy feints against good players. Used to work, doesn't anymore.