First off, welcome Mr. Blonde. The main reason I like the HeadBlade is that the blade faces "outward", as opposed to "inward" with your typical face razor. So, to shave your head, you're essentially pushing the blade across your head, like a comb (seems like a more natural motion for the head shave). As long as you keep the plastic nub (Classic) or wheels (Sport) in contact with your noggin', the blade is set at the optimum angle. It does take a little getting used to, but I think it's an awesome razor.
Cheers!
Schro