This video is another comparison of 204p and S90V in edge blunting and edge retention when push cutting cardboard. In this test, I used a Spyderco Southard to test 204p, instead of the Spyderco Domino that was used in the last test. The edge angles are 30 inclusive, with both knives brought to a high sharpness. There's also a brief review of the Spyderco Southard.