[smiley1437]

I went through manually and these appear to have the highest volumes:

H1

H2

CPM Magnacut

Sandvik 12C27

Interestingly they are all weak on Edge Retention.

[shawn_w]

Calling magnacut weak on edge retention is an... interesting take. It's not record setting, but it's far, far above the other 3 you listed.

The data this site is using really seems questionable.

[Zak]

Magnacut is given the same rating as D2, 3V, VG10, and "440" (presumabbly 440C). Elmax, M2, and Cruwear are rated higher.

CATRA testing by Magnacut's creator[0] suggests D2, 3V, VG10, and 440C should have a lower rating than Magnacut for edge retention, while Elmax, M2, and Cruwear should be the same. 5 probably is a reasonable rating for Magnacut though when Maxamet is 10.

[0] https://i2.wp.com/knifesteelnerds.com/wp-content/uploads/202...