I've just recieved the non riffe spearfishing knife off mori,its good but spent 2 & hours sharpening it with the lansky sharpening kit cos its factory grond to about 25 degrees,it will cut rice paper without ripping it now,i have to say though you have to cut 2 grooves on the inside of either clamp to hold it cos generally spearo knives have a diamond cross section but once set up it was ok & won't ruin the clamp for other applications,mr.X said it wouldn't clamp the knife,well he's right if you dont cut the grooves in the clamps,so if your looking to sharpen your get out of jail free cards then at least its an answer to having to pay a lot to have them done,will post some pics when i work out how to do it
