Kelt: I own both Mad Dog's Frequent Flyer and Mirage X EOD. And for a while, I was ernestly searching through previous posts and threads for more info on these knives and others like them.
I must say that from my own experience, and from reading about other people's experience, don't expect a fibre knife to cut. Stuff like the CS CAT, MD FF, Livesay NRG are all stabbing weapons. With a properly sharpened edge, they may serve as a last ditch cutting tool, but after one or two cuts, the edge is ruined. It's no big deal to sharpen the dege up again, but you'd want to be wary about doing it too often, or you'll only have a stick in your hand after awhile.
The ceramic type knives like Kyocera and MD MirageX (infact, I believe that apart from MD's Mirage, all the other ceramic blades, no matter who the knife maker is, are made by Kyocera) seem to cut well. The material is very hard, and, with much skill and patience, can be honed in to a very fine cutting edge. However, they are only good for slicing type cuts. The only trouble with these knives are that because of the hardness of the material, they are also rather brittle. Many people have written about chipping their knives when the blade hit bone or accidentally crashed on to the ceramic plate below. Kevin McClung (MadDog Knives) has attempted to get around this problem by using a "composite ceramic" material. (He has not released much info about its specifications, but apparently his blood, sweat and tears are involved
) His blades are also a lot thicker than any others I seen, and the primary bevel is also left more obtuse. As a result, his blades don't slice as well as the Kyocera kitchen knives, but are capable of chopping wood and poking big holes in planks. But don't believe the blade is invincible. It can chip, just like any other ceramic blade. It's just more robust, so it's able to take the shock of chopping wood.
And a word of warning. When you do finally dull the edge or if it chips and you want to redress the edge, be prepared for the long haul with a lot of elbow grease. (Alternatively, you can part with some of your hard-earned cash in an effort to persuade Kevin to resharpen the edge for you, but I wouldn't advise it, as it only diverts him from making new knives, and that would put you in the black books of all the devoted collectors of his knives
)
So, what is the best non-metal/synthetic knife out there? As in collecting all other types of knives, there is no straight answer. It all depends on what you want it for and how much you're prepared to pay for it. Although as a matter of economics, Livesay's NRG wins over MD's Frequent Flyers. (BTW, does anybody have a source for Ironwood? I heard that it's even tougher than the stuff used to make the FFs and NRGs, and I would like to try making a knife out of it.)
Hope this helps.
[This message has been edited by Steelwolf (edited 30 October 1999).]