Four I think it too short really. I like the Idea of six because it allowes more time for you as a knight to figure out who you are, and what your Master traits may be. My character Darren Shaw was a Master in 6 months, and yet some people do not take him siersouly because he advanced so quickly. However my character Morna Imura was just named a Master less than a Month ago and I started him only a few days after Darren Shaw, and as evident, Morna has a larger respect because he literally earned his way up. He has earned his strength and powers. (though some may not think so.) so from a knight to a Master, six months would not be too hard. If we lose people because they don't like the rules, Then they probably do not deserve to be a master.
@[member="Coci Sinopi"] THis is strictly my Opinion and not to be thought of as the only rule.