Put the cap on your face, tilt it only slightly, 30 degrees, you can hear the whiskers being cut. This is the sweet spot.FWIW: When I tried that, I found the AS-D2 about as effective as dragging a credit card across my face. 4 passes for a CCS. After a week of use and growing concern that I needed to put the *** up for sale, I tried a much shallower angle and started getting very close shaves.
I've been alternating shaves between the Feather and the R41, and I'd say some razors use different angles for their best results. What that angle is may depend on variables such as hair thickness, density (hair/sq inch), coarseness, evenness, etc. Using the AS-D2 at the same angle I used with Techs and iKon Shavecraft and the EJ89 did NOT work well for me.