I've got a LE trade-in M&P40 1.0 that doesn't eject properly, at least not like the other three M&P 1.0s I have (another 40 and two 45s). The brass is occasionally dented and there is a brass stain on the ejection port apparently from the brass hitting it on the way out. This happens with both factory ammo and my factory-equivalent handloads. I could probably replace the extractor and spring but am reticent about anything else. Suggestions?