i can't even remember if i posted this on this forum or another, but i had my persistence about 8 months before i even though about changing the clip, and i grabbed all my bits and and found the right size one. i barely turned that thing before i already noticed slipping, i took the bit out, and it was rounded. hadn't even applied any proper pressure. i had just recently received my Tenacious in the mail, so i went and grabbed it from it's box and looked at the screws, sure enough, 1 was stripped from the factory. Spyderco obviously knows this is an issue, because when i emailed them about it, they even said it was common on the line, and said they would send me new screws. If they know it's common, I don't see any problem with him requesting some new screws for future insurance.
and you're probably right, he should just wait to see if any of them strip. and no i'm not being facetious. i just didn't care for their reply to me, when i emailed them.