This is a case where I wager PPI production is more consistent than subjective impressions.I think it's very interesting that some people prefer the Nacets.... Others, the Perma-Sharp.... I'd wager either is an excellent choice... One might work better for someone than the other for some reason.
What was a bit surprising was: the variation in the sharpness and smoothness experienced by those who posted..... The Perma-sharp is sharper and smoother.... The Nacet is sharper and smoother..... I wonder if the manufacturing dates is a factor.