Originally posted by Friends call me Pac: I have Magnus 125 gr heads and I sharpen them with a Lansky sharpening system. I found that to get them hair popping sharp I also needed the ultra fine stone to finish the job. I never used one of these Lansky sharpeners before about 3 weeks ago but if I can get a razor's edge on knifes and broad heads with it I believe anyone can. I used the search feature and found a tutorial about using the Lansky and it worked for me.