Thinking about it without looking up my past posts, it does sound counterintuitive, Thom has a good explanation. I know it's true though because everybody that has used a straight razor has at least once tilted the razor to a steep angle when it wasn't cutting. It probably produces a less clean cut and it certainly carries a high risk with a straight, but it solves the problem. It probably seems strange trying to visualise it in the context of a safety razor with the handle below instead of to the side. I have theorised before that the angle on the Henson was chosen because it's a good compromise between efficiency and safety and that it would be massively inefficient if it was shallower. A good example is an injector razor: in spite of the rigid blade, you have to tilt it out some from the built in 15° angle to get it to cut at all. For what it's worth, I wouldn't consider steep of neutral scraping until you approach 40° blade to face angle, that might be your answer that you are still slicing right up until you aren't.Why would that be though? Either way, the blade should be able to cut the hair. If anything, it seems to me that the blade would cut more easily the closer to parallel (shallower) it is, provided the tip of the blade is at skin level. Neutral makes sense as well, as the safety bar gives some protection from skin getting bunched ahead of the blade, though a little bit of skin stretching should prevent that too. Sorry if I sound like I'm being contrary, I'm just trying to understand how steep could be advantageous before trying it, since intuitively it seems harsher/riskier.