I've been doing ATG passes on my face and upper areas of the neck by stretching my face from above -- so far with no problems. I really want to achieve a BBS shave, and I know in order to do that, I'm going to need to go ATG all over my neck!

My beard grows very low down, and the skin on my neck is VERY sensitive. After the first 2 passes (both WTG), and a pretty solid shave, what are some good tips for prep and an ATG pass on the neck?

Do I lather up, or just use water? How do you hold the razor when you're going ATG on the neck? Does the angle change as your going up the neck?