Since all knives go off with use, it is important to protect your silverware investments with the proper maintenance tools. The long-term performance of a knife depends on how it is snatched again.

Knives made from finer steel will hold a longer edge, but even the best of knives dull with use - and the factory leading edge only lasts for the first few days or weeks of use.

That for more than 99% of a knife's life, its edge performance depends on how it is snatched again. Replicating the factory starting edge is not particularly relevant, especially since today's modern sharpeners can apply a better factory edge to every knife.