I really wanted to try one of these because of the 8670 steel. High carbon steels can take a sharper edge than most stainless steels.
Ordered the Whisper & 5" Companion & they're definatly bargains at $50 each.
The edge back bevel is narrow enough on the Whisper so that you can use a Sharpmaker to get a really keen edge. Starting with the brown stones & finishing with the ultra-fine. I wound up using just the points of the triangle stones because this is very tough steel.
John Greco says they're hardened to the "high 50's" so I'm guessing 57-58 RC.
This steel takes more time than any stainless I've honed using the Sharpmaker, but the results are very good. This is partly due to the origonal edge geometry, but even after getting the grind right with the brown hones, it takes a while to get it to hair popping. Finishing the blade with a strop brought out the "sticky" edge that just pops hairs off, right to the very tip of the blade.
The design of the knife lends itself to work as a fillet knife for large fish, and of course is great for self defence.
It's actually rather small in the hand, but feels very comfortable. Very secure & not much chance of the hand slipping up on the blade. Just cutting up some chicken & fish have shown that it holds an edge as good as any of the "super" stainless steels I've been using.
Gonna reprofile the 5" Companion on the EdgePro & that baby oughta be "twangy" sharp , as John Greco puts it.
What impressed me most is that I got the Whisper to that level just on a Sharpmaker, instead of having to use the EdgePro first. The EdgePro is usually needed to take off the "factory" edge & get down to the good steel that will really hold an edge.
John's not overheating the blade when he puts the origonal edge on, & the grind marks show that he's using a very fine grit. For a blade .2" thick, this thing takes a wicked edge.