I have owned one SV 9mm IMM and it ran fine but only owned it for a short time. The other two I have had are Limcat Phanterras and they are utterly reliable. Of course I do my part with keeping them clean and lubed up and also checking and sorting brass, etc. The only issue I have had (which cost me the match) was a broken STI mag catch and it caused the craziest of symptoms. Now I run only Dawson and they work perfectly and prevent over insertion. Both of my Limcats were bought used from the original owners. To me the gun builder backing the gun makes all the difference. Johnny is incredible and his guns have a lifetime warranty regardless of owner. I just bought my third open gun (Beastcat) and will be selling my Phanterra to some lucky buyer out there who gets to enjoy a gun that runs and runs and has an incredible company backing it.