calipers: I understand the really expert users of calipers rely as much as the visuals of the person they are measuring, as they do the tool. When you think about it, it makes sense. Everyone carries their body fat differently, and who knows how much is carried interally in the viscera where it cannot be measured. I would bet that Alwyn could look at a person and do a pinch test with his fingers, and be more accurate than a typical person at other gyms.
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