I’ve used a Lansky for over 30 years. Have sharpened hundreds of broadheads and many dozen knives. I have the non diamond stone stones that you need to use oil with. The key is have the blade solidly clamped in so it does not move.
I’ve worn out several sets of stones, but they’re easily replaced and not expensive. The Lansky works best on shorter blades, 4” or less.
