Well, after much thought and testing, Ive decided to send my M&P back to S&W for a second time. The first time they replaced the ejector and did a barrel modification. I took it out today and ran about 50 rounds through it and now alot of the casings fly off to the LEFT of me landing on my shoulder, then off to the right, and still at my face. VERY FRUSTRATING, so we will see if they fix it this time!!