Thats excellent! yeah one of the youtube guys (clough42) had issues with the db9 converter as well. For anyone reading this thread in the future, stepperonline sells a DB9-USB converter thats compatible with the leadshine/T6 software. stepperonline mentions it in their listing, Its cheap and worth getting along with the servos.
https://www.omc-stepperonline.com/us...converter-c006
Glad to hear you figured out motion studio, I was getting a little nervous that I would have to go through a complex tuning procedure if autotune was not up to the task.