Earlier this year I splurged and bought a couple of knives from North Arm. One is a 6" fillet knife, the other is a 3.6" pairing/bird knife, both in Magnacut. I didn't get a chance to do any fishing this summer so haven't tried the fillet blade yet, but I'll be using it to process deer in the coming weeks. The trillium/mallard is actually sold as 2 different knives, but the only difference is that the mallard version comes with a kydex sheath. I've not used it a lot, but one word sums it up. WOW. I put a polished edge on it and it has held up nicely. I've only used it to chop up a few potatoes, and slice a few onions and tomatoes, but the edge has remained razor sharp. The thin sharp blade slices through veggies almost effortlessly. This is the only knife I have where I think it might actually be too sharp. When I'm cutting the core out of the top of a tomato, it takes a lot more effort to turn the blade around the core than it does to slice the tomato, making it easy for the blade to slip and cut somewhere I didn't plan on. I'm looking forward to using it next month to clean pheasant. If the fillet knife does as well as the pairing knife, I'll be wanting to add one or two more of their blades to my line up of working blades.