I've found most of this stuff is best not being too analyzed. You just do and you learn by doing and your facility improves and then one day a stroke you never did becomes easy. That's how I found things to be.

I'm left handed and do most of my face with my left hand but there are areas I do with my right and other areas I can just as easily do with my right as my left but most of us southpaws are way more ambidextrous than the rest of the population because we always have to adapt.

Much of this shaving thing is really done by feel so while not being able to see where the blade is going might be unnerving at first you will realize eventually you really don't need to see it. I used to use my finger as a guide in the circumstance. We used to have a member who was blind and he used a straight.