I've never used the head shaver, but like 3 months ago I was using the Gillette fusion and it did take me more time to shave my head and my face, mostly because the blades are tougher to rinse out and in my opinion and don't work as well as a double edge razor. Since I've been using a double edge razor I have gotten a faster shave now that I am more experienced with it. Needless to say DON'T GO TOO FAST.
I did something quite stupid earlier this week that I hope to never do again... Alright so I just started using shaving cream again since I got more because for 2 weeks before that I was just using mineral oil which was a bit tough to shave, so I applied more pressure to the blade. Little did I know I did the same thing 2 weeks later with shaving cream and butchered my head like crazy. Blood just kept poring out of my head, so I put aftershave on like I usually do and it still kept rushing out of my head, so I decided to do something really stupid and clean it off with shampoo. little did I know that this would burn like hell!!! LESSON LEARNED, SHAVE AT YOUR OWN PACE OR BUTCHER YOUR FACE (HEAD). lolz