Wasn't giving him "guff".... just going on the probability and likelihood of real world issues. Like I said, most guys won't admit the POSSIBILITY of shooter errors. Granted it could be wildly out of spec factory ammo OR a horribly fitted SS, but other issues would have arisen. From what I've seen, it's not necessarily repetitive after each shot either. Happens a LOT from the classes I've been in from guys that shoot thumbs forward on Glocks and transfer to 1911s. Don't need to be a "1911 armorer" to catch a loose plunger tube once and awhile.