I would expect the answer to be "no," ZD. Presumably and hopefully the gauge is defined based on the total of the cross-sectional areas of all of the individual rectangular conductive strands. In terms of DC resistance, and hence gauge, that would result in an apples-to-apples comparison with any other conductor configuration having the same total cross-sectional area (assuming the same conductive material is being used).
Best regards,
-- Al
Best regards,
-- Al