Like tobler said a few posts back....you could always tweeze/epilate (and possibly wax) your head if you want the shadow-free look....However, do you have the time and/or pain threshhold to do that?...Also, that doesn't kill the hair, it only grows back finer. FWIW, I think the picture you posted is pretty good, I can barely see any shadow...It will show less with a good tan, though.