Headblade looks interesting, but I can't imagine how anything could shave my dome smoother than my Mach 3 M3 Power. My head is slick as glass when I'm done. And I really dig the vibrating thing. No need for me to change gear
Everyone is a little different with what works for them...
I started shaving the dome with the M3 Power... then I saw an ad for Headblade one day and decided to give it a shot (not really expecting much). 3 1/2 years later, I'm still using the headblade!