Hmmm, I do like the system however I feel it is not necessary or beneficial for fflogs in any way - looking across you will see the discrepancy between cheesed parses and non cheesed is incredibly marginal, and honestly not an issue in the way it is in warcraftlogs. Damage numbers at the top end do not have the large variation of others.
Also, as a8s has very low clear numbers for many classes, this creates an issue of parses with only 0.1% difference (or lower) giving 2-3 less points due to percentile score.