Great responses, it is only through discussion that one can feel comfortable with answers to questions like we are discussing.
One's body and one's mind are sometimes very hard to understand. My daughter who is left handed at first wrote her name backwards when she first went to school, and it took sometime for this to reverse and spell her name in the correct format, at least to us.
I am in complete agreement that everyone should hew in what ever style that they seem the most comfortable with, but only after being shown what appears to be correct first for them. As I perceived students working at first with the hewing and scoring axes if I seen what appeared to me to be a safety problem I would interveen and work with them until I felt comfortable with their style because the most acceptable and safe style is the one that you have the most control of the axes with.