If your trying to quantify the honing process, good luck. The pyramid scheme is really a struggling attempt to try and do just that and its a convenient starting point. In reality each razor is an individual and each one takes a different degree of honing to do the job. Even new out of the box razors all require different approaches. I had two sequentially numbered SRP TI razors and out of the box they each required radically different honing schemes to get shave ready.

Its all a matter of experience and feel.