I think more common terminology holds that shallow angles are those that place the blade's edge nearly parallel with the surface of the skin. At least, that's what I've held to be true. It just makes sense to me for the measurement to be relative to the surface, rather than relative to the perpendicular, despite how we tend to hold and find cutting angles on DEs.I have a feeling that we're both talking about the same thing and you're calling it the opposite.
Either way, your posts suddenly make a lot more sense to me.