My XD40SC has been flawless. Then at about round 600 the recoil spring went bad. It obiously stretched out and enlarged in diameter and caused the slide to jam. I called Springfield, they sent a new one no questions asked and the gun has been working perfect for 100 rounds so far. I won't worry too much at this point but will have to put another 600 rounds through to begin to restore full confidence in the gun.
Meanwhile the glock17 keeps running and running and running and ...........
By the way. Great new forum. I've been out of town quite a bit the last couple of months and am glad to find the cast again, even though I was more a lurker than a contributor at TCC forum.