Big decision. I would like to get a 9mm full size that I could shoot regularly and use for home defense. I am considering going into IPSC and other shooting competitions. I never really considered Glocks before now because I didn't like it's slide stop lever's size or the mag release. Now that the G4's have the exchangeable back straps, larger mag release, and slide stop, it is now in the running for my next purchase. I love the M&p's ergonomics but I have heard horror stories about Smith and Wesson's reliability. I have gotten mixed reviews about the Smith but I still seem to like it better because it has a slight edge on ergo's over the Glock. The Glock is more reliable and has more parts that I can use. Does anybody have experience with the new G4's or MP's? I am flexible on other pistols or designs. Please let us know about your experiences!!!!