In an effort to improve your shave do you switch between hands as you shave the opposite side of your face? For example when making an east-west pass one might want to switch hands as they switch cheeks in order to keep their wrist and attack angle more consistent. Many do this when shaving with a straight, but given how easy it is to maneuver a safety razor I suspect most do not.
I did not realize how valuable of a skill this might be until the threads on my 3-piece travel razor stripped and I was left literally holding the razor head by the screw threads. I could only dare to make a north-south pass while trying to keep enough pressure on the base plate so that the blade was properly sandwiched in the head. But that was difficult to do on the neckline, shaving the left side with my right hand was manageable but it was very difficult to repeat on the right side under the jaw.
Does you DE shave with both hands?