I think my skin is pretty normal, but frags don't last that much on me (with a few good exceptions) and doesn't matter how many sprays i use. The only problem is overspraying the wrong kind of fragances in the wrong weather. I can't imagine myself using 8 sprays of A*Men in hot summer, not even Hypnose or Pure Malt, heat intensifies the smell making it uncomfortable for me, but many fragances don't get affected by the number of sprays, and, in cold weather the problem is less serious.
Last weekend i used more than 6-7 sprays of Ambre Sultan, it was still warm and i was at a party outdoors... no one seemed to notice the smell of Ambre Sultan (even if it is a rare scents where I live, amber centered scents are no popular over here). Nevertheless, a guy with Only the brave was giving me headache