Don't want to give away too much in the unlikely possibility I can get someone to publish this stuff

but the idea that pattern welded barrels are more elastic than fluid steel may also be mythology. In the tensile testing study, the average % Elongation was 9%; High - 16% and Low - 5% with a slight advantage to the crolle barrels. The average for the 3 samples of fluid steel was almost 14%.
A Parker fella recently did composition analysis on 4 different Parker named fluid steels, but not tensile testing which I hope will be forthcoming.