Originally Posted by nulla 
I agree along the lines of Seamuis in this case.
Pentax would not jeopardise their reputition or the quality of FA limiteds reputations if the exact standards of workmanship were not met.
Neil
Don't you think that has happened already to some extent? I was surprised when I joined this forum that an entire (sticky) thread was dedicated listing serial numbers for good and bad copies of a DA* zoom. I just don't realize there being so much buzz about good and bad copies of lenses 20 years ago, but maybe we just didn't have the communication.