I have been seriously considering an xd for a house gun, but after reading the reports here of the slide locking back mid-magazine on the .40 and .357 models, and seeing as how many of these instances have occured without the shooters thumbs coming into contact with the slide stop, I have reached the conclusion that this weapon is not reliable for self-defense. Can anyone convince me otherwise? Does this happen with the 9mm? If not, what kind of stopping power would I be sacrificing in comparison to the .40 or .357? I hope there is some way to justify the purchase of one of these pistols, because I really do like them. Any thoughts? I should clarify that the malfunctions that I recall reading about were a result of a round in the magazine coming into contact with the slide lock as they moved upward in the magazine. Is this not a design flaw?