re "hand in the way".
I found this to be a problem doing the sideburn area. There was no other place I had this problem. After some experimentation I found I could get just enough of a peek using the opposite eye. That is, look with left eye when doing right sideburn.
The frustrating thing was that the sideburn area is where you tend to start your shave so you run into trouble immediately!
Somebody's nuts. I don't know whether it's me or them, but somebody is definitely nuts. I just wished I knew, so I'd know, you know?