I new they were crapola!, That settles it, I'm dumping my collection, worn out threads will not be tolerated at 75-85 years of age.....It's the uncertainty......At least with the smok Z's you could count on the threads wearing out in a week or two along with the centerpin, now that's at least predicable!
. .. Well, I know one thing, the Sig Zmax will certainly outlive the provari service department