what angle would be closest to the factory edge using the edgepro on the paramilitary? Tried the sharpie trick with a 1000 stone, using light pressure i'm having a difficult time trying to find the angle by removing the sharpie. Maybe i need to try a coarser stone to find the edge angle? Have read people stating spyderco aims for 30 inclusive, 15 per side, but that seems awfully steep of an angle to me for a hard use pocket knife?