Rule #1 -- It is NEVER the shooter!!

Rule # 2 -- In reality, and in spite of Rule #1, IT IS NEARLY ALWAYS THE SHOOTER!

Especially if a shooter has never fired a "Safe-action" (or Glock-style action, or whatever you want to call it) pistol before, it is just about guaranteed that the first time he gets his hand on one he will shoot low -- usually left-low, if he's a right-hander. This fact is so predictable -- in fact, almost immutable -- that I have actually won money by betting on it. I don't care how long you've been shooting or how many different types of guns you've shot -- you WILL shoot low, and it WILL be your fault. The only exceptions to this rule will be the folks who, through years of experience, know that keeping their eye welded to the front sight is vital. When you do that, you quickly see that this type of trigger action requires a slightly different grip and trigger-finger positioning than any other type of handgun. Make the slight adaptation required, and the problem goes away.

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Pisgah