As an engineer with experience in such matters, pick the one that seems the best, build a prototype or scale model, beat on it until it breaks and analyze the failure mode.
I know you are an engineer, because that is the absolute truth about how 99% of product and technology development occurs.
19 posted on 02/12/2014 6:31:34 AM PST by Atlas Sneezed
("Income Inequality?" Let's start with Washington DC vs. the rest of the nation!)