I have a 3 line american hone i won it on ebay it belonged to a barber but sadly he passed away and never used it so mine is brand new but same as you jimmy i have never used it i have lapped it i have so many coti and now naniwa 12k its choosing which one to use for touch ups i also have the usaul paste. I f your edge edge is not performing would you normally go to ch.5 for a thew laps and if that did'nt do the trick then go to say barber hone or coti 12k etc. did you use paste after barber hone and whats the egde like to say your coticule if you had of used that for touching up edge.