Kay, I started out with the Viking Mega Quilter 9" and it was great. Never had to change the tension and I used all sorts of threads. I then added PCQ robotics but I soon got tired of the small throat so moved up to a stretched Juki 18" on the same frame which was a Grace Pro 10' and still with robotics but moved up to the PCQ retrofitted MQR. I have now moved up for the last time to an Innova 26", 12' frame and upgraded the MQR. I'm in 7th heaven but it all started out with the MegaQuilter so enjoy your machine as I found mine to be a dream to use.