Just do the feel and shave technique. You feel around for hairs with your free hand and when you isolate a patch, you move in with the Mach3 Turbo by Gillette. Mow through that patch and then move on to the next. It works for me.
You don't get an itchy ass unless you decide to let it grow back. If that's the case, place a corncob between your cheeks for anytime instant relief.
