I have started slowly dry shaving the back of the neck as I gain confedence. I'm doing it more by feel than sight. So far so good.
I still suffer occasionally from slight razor burn on my lower jaw. I haven't figured out what I'm doing wrong yet. I've also tried using the left hand, and need much practice. It feels more awkward than I thought it would.
All in all it's still the best shave I've ever had and I always look forward to the morning shave. I find it quite gratifying and relaxing.
I'm hooked. I admit it.