I'm not much help here because I just got started with straight razors however I have a few of them and prefer to use a different razor for my head. I have only shaved my head 3 times so far but will be doing so today. I'm almost completely bald to begin with and pretty much dulled my razors with improper stropping techniques but have gotten better recently. I hope some more head shavers will chime in with some good tips on head shaving.