Are you using the 4 x 36. I only have a 4x36 and 1 x 30. I had a heck of time getting good grinds on the 4 x 36 . I actually use the cheapm1x 30. I just felt the other was too wide, everybody here pretty much uses a 2 x 72. I won't have the opportunity to get one of those but I am considering a 2 x 42 or 2 x 48. 200 dollars. Slavic Tely use one and makes beautiful knifes. Check him out.