Thanks! The 6% was based on the first figure. I overlayed the ANSUR description of the hand measurement with the outline of Trump’s hand, and aligned the parts that should not be affected as much by the fingers spreading: one side and the bottom of the palm. I then aligned the middle fingers. Measuring from the tip of the finger to the ANSUR measurement point yielded the 6% correction.

That’s interesting about the bronze cast shrinking; assuming the 2% shrinking, that puts his hand at .6 standard deviations below the mean rather than 1 standard deviation (smaller than about 72% of men his height).

Re: how the hands were held, I’m not sure how that would change the length; I can imagine it going either way.