Whilst I agree in general that with practice you can use the razor you use for for face shaving just as readily for head shaving, never the less I have found some razors easier and more forgiving for head shaving. For speed and minimal risk of nicks, I find the Gillette Guard (cart) very good closely followed by the 1912 SE (there is something about easily maintaining the correct angle with a 1912). For DE's, paradoxically, I find a more aggressive razor easier for head shaving than a milder razor, thus the R41 works great for me. Maintaining the optimum angle for each razor does take some time to dial-in for head shaving but it is only practice. Mind your ears and eyebrows! ...