i haven't mastered left handed shaving yet as i am still working on my dominant hand so which ever way seems appropriate i guess. i did start by gripping it like a screwdriver at first which was OK (i do still use it for certain spots) but once i realized that lighter was better then the white knuckle death grip i was using i typically stick to having the scales between my index finger and middle finger, and when i shave up i reverse it except for my neck where i may hold it with my index and thumb parallel to the tang, knuckles out. i am pretty new i guess but am pretty consistent with the ways i hold the blade now as i am getting a lot better shaves. i think in a year or so i will probably throw a wrench in things and try to learn with my left hand, i'm keeping one blade dull for practicing.