Best Mainsail Halyard Material

[allene]

I thought the numbers strange so I checked the data sheets.

http://www.neropes.com/Datasheets/IND_STASET.pdf
http://www.newenglandropes.com/Datasheets/MAR_VPC.pdf

It is easy to correct my table if I could find a source for the numbers for 10%, 20%, and 30% stretch for each line.

I saw the WM numbers but I don't always trust them either which is why I went to the NE Rope data sheets.