This may have already been said, but make sure you're shaving WTG first. The neck is commonly an area where the hair grows in several different directions. For me, shaving WTG first means shaving half way up my neck starting from the bottom and going up. Then shaving the rest by shaving towards the sides from the center. As mentioned in some of the first posts, stretching your skin as much as possible is a big help as well. This is ofcourse assuming that your angle is flat enough, the blade is honed and stropped correctly etc. Just keep practicing and keep the nick stick close by. :-)