Update to this post. Short version of what feels like a long wait. I found this thread in late July 2018 and bought this M1. ATF cashed My Trust’s check December 6, 2018. My form 4 was approved December 5, 2019. My dealer received it today and my first Thompson is now at home! I’m very excited. (Fortunately, my dealer was close so I was able to visit it several times and shot it in March.)