In my case I found most of those were by folks that were already accustomed to the operation of a different CCW or they were shooting a different round than what my research found to shoot reliably and accurately. This is also my first striker fired pistol so I don't have any muscle memory conflicts with it, if you get what I mean. There were still a couple issues some guys had but I felt confident enough to "pull the trigger" and have my Wife get me one for Christmas. I've had it to the range a couple times and am very pleased with it so far.