Thanks a lot everyone for all your encouraging replies, I actually feel I'm ready and going to do it, which I have thought many times, but then as I get close to doing it I back away and walk off. I need to just do it, but it's just that first stroke. Aargh!!
As the Nike ad says Just do it.You'll be amazed at the surge in confidence you wqill feel running your hand over your newly smooth scalp. Post a pic after the deed.