I haven't owned a 9MM in several years. I must have owned seven or eight before I gave up on 'em. To much work to get decent accuracy, unless you want to send Wilson or Baer your first born. My .45s will turn in a decent performance with just about anything I stuff in 'em.
Eddie
Another reason to stay away 'em.You think you are having problems mixing 45 and 9mm. Our local range now has a few shooting the 9x18 and leaving their brass. Try sorting out the 9x18 from your 9x19!! These old eyes cannot spot one inch much less one millimeter.
Eddie