I have had a Calypso Jr. with the ZDP-189/420J blade for a little over a month. It has been used to cut quite a bit of plastic and card board. In my opinion it has retained a very sharp edge much longer than any other knife that I have used for this kind of general utility cutting. I have and use knives with ATS-34, VG-10, D2, 154CM and 440C blade steels. In my experience, ZDP-189 is much better as far as edge holding is concerned. This is a conclusion based on very non scientific data and I am happy with the performance of the other steels mentioned. Its just that ZDP-189 is better IMO. I have one knife with S30V blade steel and it is big so I dont use it at work and therefore cant compare it to ZDP-189.
Mine came with the blade wiggle mentioned by several people. After removing the pocket clip, careful squeezing in a vice tightened it right up. No more wiggle.
The 420J layers show some scratch marks but the exposed ZDP does not. I probably would like a solid ZDP blade better but Im sure the 420J would be easy to buff out.
The Caly 3 and Endura with ZDP should be terrific.
Mine came with the blade wiggle mentioned by several people. After removing the pocket clip, careful squeezing in a vice tightened it right up. No more wiggle.
The 420J layers show some scratch marks but the exposed ZDP does not. I probably would like a solid ZDP blade better but Im sure the 420J would be easy to buff out.
The Caly 3 and Endura with ZDP should be terrific.