Recently invested in a Stil sharpener, $40 bucks and I freaking love it, way better than old one. Make sure you get right size. Also if your not familiar with chains the one for dead wood stays sharper longer. Learned hard way with green wood one… About 4 chains worth.
This sharpener also takes down the edge that cleans out groove your cutting, no longer have second step or guessing how far down to take it.