Maybe they do this in Germany when they import it from Spain. They don't go to a proof house here to be tested after import into the usa. What is the Big Deal About Proof?
You could blow this off as randy chuck agenda but it seems credible to me.
CVA told me no not tested to 20'000 or 25'000 psi Austin & Halleck did further testing in the USA along with TC & others. Thats note worthy in my book.