I honestly don’t know, I just shave in an angle that feels right. I just adapt to whatever I’m using with out really thinking about it. I found out that the more I try to control every aspect of the shave, the less enjoyable it is for me. I just do everything by feel. I know this doesn’t really contribute anything to the thread but I’m sure there has to be other people with a similar experience. I voted for both since I just shave by feel depending on the razor.