Yes the chin is probably the hardest area. I think it took me about two months after I started before I even attempted a N-S pass but what I usually do now is first a N-S pass to the bottom of my chin then an E-W and W-E pass and then another N-S pass from the middle of my chin all the way around the under part of my chin finally a S-N pass on the upper part of my chin only. That seems to do the job. Just remember to have a very sharp razor and keep plenty of lubrication on your chin.