fgunnr:
Also, you mention that, "Every six months or so I pull it out to have the same FTE problems." Do you clean and lubricate the pistol after it has been sitting for six months and before taking it to the range? Being the smallest and lightest pistol chambered for 9mm Parabellum, the tolerances of the R9 are necessarily minimal and it needs to be clean and well lubricated to function properly. If one of these little pocket rockets sits in a safe for six months, it can become what I call "dry," which in turn can affect its function.
Good luck!