Put a block of wood covered with a rag under where you are hammering btwfrankfalbo said:Maybe it's just me (although I've heard this from others) but in my experience, Warmoth frets tend to walk out over time. I don't know if it's the way they seat them, or the size of the fret slot, but they tend to go uneven over time. My solution is to drip a bead of thin superglue down each fret slot from the side immediately upon receipt. It's tedious and can be a little messy, but it's worth it IMO. I don't expect you to do that, especially if you haven't done that kind of stuff before. But what it leads me to say is before you level it, and remove some fret material, try hitting it down. If you don't have a fretting hammer, put a guitar pick over it so you don't mar the fret. You can also try pushing it down and see if there's "flex" in it. If there is, then it should be held down and glued.