I picked up a nice user Swamp Rat Tali-Whacker LE that needs a sharpening (it will barely slice paper) My sharpening experience is limited to my Sharpmaker on my folders and I have not sharpened any bussekin before my attempt at sharpening the TW on my sharpmaker. I put black sharpie on the edge and used the grey rods at the 40 degree setting, the black sharpie line was removed but I am not getting the edge sharper. Thoughts on getting the TW LE razor sharp again? Thanks in advance for any advise.