Ok I just bought a new Lange skinfold caliper.I took a couple of readings as per there directions.I come out to have 15 % body fat.Now heres my question?The chart reads male ages 40-49 I am 15% body fat but the same measurements of a total 24mm under ages 17-29 I would be 10.5%,ok what does age have to do with it? yes I am 43yrs old male.But I thought I was lower.My stats are 43yrs old 5'9" 164lbs in the bare nice muscle definition,decent veins in arms front of shoulders and on lower abs.please advise Thank you.Im a fat man...........lol