I just use an electric trimmer for my neck line, if my beard was shorter I'd probably continue to use a safety razor but I never liked to use it when it came to lining the beard up because it always felt clunky, and the edwin jagger is actually fairly small. I preferred to use a straight razor for lining up but I stopped doing it a while ago. Yah I've shaved a full beard using a safety razor before. I could never get the hang of shaving against the grain on my neck though. Do you line the cheek lines as well? I used to do that too but now I just keep a natural cheek line.