Short version, yes. Note that the gap should be consistent, the cutting action is different in that (especially with the helical, like Fasan, Wunderbar, etc.,) you are slicing hair, not chopping it. Think of the difference between pushing a large knife through a loaf of bread, top to bottom, vs. slicing. That is the essential difference. You would probably be able to feel the difference, particularly ATG.Does a slant feel and work differently than a regular blade being drawn across the face at an angle? I noted this morning that, other than WTG strokes from the edge of the sideburns and the stroke down the middle of lip, chin, and neck, most strokes have some degree of angle. If slants do feel and work differently, what is it, the torquing of the blade? The variable gap?
Your experience with one is dependant on hair growth patterns, coarseness, and the style of slant. I prefer the helical designs, as the blade is more rigid and the draw stroke is more effective for me. Some may find a slanted head, ala NeioGam, NeoRas, ATT, better for their shaving style.
A PAA Fasan copy and/or. German 37 are good economical entries to both styles. ATT, in the AC format, is it's own game.