With a Rc value in the mid 50s, a couple points is noticeable if you are paying attention.
Not sure how noticeable a point or two will be in the low/mid 60s with this or any steel that
can be treated up to the mid 60s.

With 154 steel, I noticed a little difference when going from 59 to 61----I think.
Sometimes your mind takes over and your perception is jaded.
In field use, IF I did not know which blade was at which Rc, I might not be able to get it right more than 50% of the time.

In my opinion/experience the "differences" touted in the many variations of steel chemistry/performance are only readily
noticeable with lab equipment and not so obvious in field use.
But hey...........There are a lot of companies that make "Kleenex" and without the label who would know which?????
Tim


"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein

At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".