It takes most people at least two or three times to get it "right" One of the best methods that works for me, especially if I go too long between headshaves, is to lather up and shave one side at a time, first with the grain and the second time against the grain. While this may take a little longer, it gives me peace of mind that I got the shave that I wanted. It is okay to go out for a little while and get some sun on the dome, but I would say 30-45 minutes max. You may need to make a second pass at times on the sides and back because that's where the hair follicles are the strongest....Even if you get smooth, the shadow will be there until you get a good tan. Good luck (P.S. did you get the PM response from me?)